Ted needs an average of at least 70 on his three day history tests. He has already scored 80 and 60 on two tests. What is the minimum grade Ted needs on his third.

Thank you for your assistance ​

Answers

Answer 1

Answer:

Step-by-step explanation:

To solve, we first need to know how to find the average of a group of numbers. To find the average of a group of numbers, you add all the numbers together and divide that answer by the number of numbers you have. For instance, to find the average of 1, 2, 3, 4 and 5, we would add all the numbers together, which would equal 15. We would then divide that number by 5, because there are 5 numbers total: 15/5 = 3. So the average is 3.

Now, to find the average in your problem, we need to look at what we know:

He received an 85 and 60 on two of the test scores

He needs an overall average of 70

Let's set this up in equation form:

%2885+%2B+60+%2B+x%29%2F3+%3E=+70

Now, let's get rid of our fraction on the left. We can do this by multiplying the entire equation by 3, giving us:

85 + 60 + x >= 210

Next, combine the numbers on the left, which will give us:

145 + x >= 210

Finally, subtract 145 from both sides, which will give us our answer:

145 + x - 145 >= 210 - 145 =

x >= 65

So, in order to average at least 70, he must score a 65 or higher on his third test.


Related Questions

total cents is $4. there are 20 more nickels than quarters. how many nickels and how many quarters.​

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Answer:

Step-by-step explanation:

Please solve.. I will mark you brainliest

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Step-by-step explanation:

6y=3y+6(congruent triangles)

6y-3y=6

3y = 6

y=2

ST =6(2) =12

TU = 3(2) + 6 =12

Please help. I'll mark the answer as brainliest.​

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thanks for the points

Step-by-step explanation:

hehe

3
10 points
A vector starts at point (-8,-6) and ends at point (7,-3) what is the horizontal component of the vector?
Type your answer...

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It’s 15. 7- (-8)=15. It take the vector 15 units to travel horizontally to the right

Quadrilateral A’B’ C’ D ‘ is the result of reflecting quadrilateral ABCD across line l

Answers

Answer:

C

Step-by-step explanation:

Draw an area model. Then, Solve using the standard algorithm.
642 x 207

Answers

Uhmm,, 132,894?

132,894 ba?

An area model for the area of 1,32,894 units² is shown in the image.

We have to give that,

The standard algorithm is,

642 x 207

Now, for the area model,

Draw a rectangle with a length of 642 units and a width of 207 units.

Then, the Area of the rectangle is,

A = Lenght x Width

A = 642 x 207

A = 1,32,894 units²

Hence, the Area is,

A = 1,32,894 units²

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Find the measure of the missing angle.

Answers

Answer:

a = 34

Step-by-step explanation:

Tell me in the comments if you want an explanation!

Hope This Helps! •v•

Which of these is a good conductor?
wood
silver
paper
air

Answers

Silver is an excellent conductor for heat.
the answer is silver

please help me this hard

Answers

Answer:

P= 6

Step-by-step explanation:

6P=-6+7P

6P-7P=-6

-P=-6 -------divide both side by negative

P=6 you get

(ii) Explain why a+b+c= 235°
This is a cornet maths question. How do I solve it

Answers

Answer:

Where is the image?

Step-by-step explanation:

Tell me in comments

The equation a + b + c = 235 is true because a = c = 55° and b = 125°

How to prove that a + b + c = 235?

The angle a and 125° are on the same straight line.

So, we have:

a + 125° = 180°

Subtract 125 from both sides

a = 55°

The angle b and 125° are vertical angles

So, we have:

b = 125°

The angle a and angle a are vertical angles

So, we have:

c = a

This gives

c = 55°

Add the three angles

a + b + c = 55° + 125° + 55°

Evaluate the sum

a + b + c = 235°

Hence, it is true that a + b + c = 235°

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Dana went to the local salon to get a haircut. The cost was $38. Dana tipped the hair stylist 20%. What was the total cost of the haircut including the tip? Round to the nearest cent.

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Answer:

Dana paid $45.60 in total.

Step-by-step explanation:

20% of 38 is 7.60. Add this to the total price of $38. (38+7.60=$45.60)

Oceanside Bike Rental Shop charges a 15 dollar fixed fee plus 9 dollars an hour for renting a bike. Joan paid 60 dollars to rent a bike. How many hours did she pay to have the bike checked out ?

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3 or 4 have s good day

Please help me!!!!! THIS IS LATE NEED HELP!!!! Just a head's up the graph x and y axis goes by 2 not 1.
Find two points from this graph and then determine the slope.

Answers

First point (4,2) , (6,5)
slop = y2-y1/x2-x1
=5-2/6-4
Slop= 3/2

round off 4.675 to the nearest tenth​

Answers

round off 4.675 to the nearest tenth

4.7

hope it helps

you walk into a room.on the bed,there 2 dogs, 4 cat, a girrafe, 5 cows and a duck.there are also three chickens flying above the bed.how many legs are on the floor ?

Answers

Answer:

50 legs

Step-by-step explanation:

We know that a dog has 4 legs, a cat has 4 legs, a giraffe has 4 legs, a duck has 2 legs, and a chicken has 2 legs. So, we want to calculate [tex]2(4)+4(4)+1(4)+5(4)+1(2)+3(2)[/tex], right?

Wrong! It's a trick question! The chickens aren't on the floor, so they don't count. So, we really want [tex]2(4)+4(4)+1(4)+5(4)+1(2)[/tex].

We multiply it out to get [tex]8+16+4+20+2[/tex].

We add these up to get [tex]50[/tex].

So, our answer is [tex]\boxed{50}[/tex] legs.

asap po please thank you po!

Answers

Answer:

1 is correct, 100.

2 is 500, not 470. since we're rounding to the nearest hundred, we would look at the tens place and if it's higher than 5 then round up.

3 is correct.

4 is correct.

5 is correct.

6 is correct.

7 is correct.

8 is 290, not 300. like i said before, but in this case we're rounding t the nearest ten instead of hundred. but the same rules apply.

9 is correct.

and 10 is correct!

i think that you did pretty well on most of these, but remember the rounding rule.

which number line and expression show how to find the distance from -4 to -1

Answers

Answer: A

Step-by-step explanation: you can see the two dots representing -1 and -4 the line then connects them showing the distance

guys pls help me!!!!!!

Answers

Answer:

X = 126

Step-by-step explanation:

180 - 54 = 126

54+x=180

if f(x)=3x-15 and g(x)=2x+11; find f(g(2))

Answers

Answer:

f(g(2)) = 30

Step-by-step explanation:

Evaluate g(2) , then substitute the value obtained into f(x)

g(2) = 2(2) + 11 = 4 + 11 = 15 , then

f(15) = 3(15) - 15 = 45 - 15 = 30

Step-by-step explanation:

[tex]f(x) = 3x - 15 \\ g(x) = 2x + 11 \\ f(g(x)) = 3(2x + 11) - 15 \\ f(g(x)) = 6x + 33 - 15 \\ f(g(x)) = 6x + 18 \\ f(g(2)) = 6(2) + 18 \\ f(g(2)) = 12 + 18 \\ \boxed{f(g(2)) = 30}[/tex]

f(g(2)) = 30 is the right answer.

I really need help in this, please I keep getting links! help asap. (20 points)

Allen is showing his work in simplifying –8.3 + 9.2 – 4.4 + 3.7. Identify and explain any errors in his work or in his reasoning. Write feedback to Allen explaining the mistake he made and how to correct his work.


Step Work Reasoning
−8.3 + 9.2 − 4.4 + 3.7 Original problem
1 −8.3 + 9.2 + 4.4 + 3.7 Additive inverse
2 −8.3 + 4.4 + 9.2 + 3.7 Commutative property
3 −8.3 + (4.4 + 9.2 + 3.7) Associative property
4 −8.3 + 17.3 Simplify
5 9 Simplify

Answers

Answer:

0.2

Step-by-step explanation:

Franklin's office just started a new recycling program this year. They aim to recycle 7 kilograms of paper each week. Write an equation that shows the relationship between the number of weeks Franklin's office is on the recycling program, x, and the total number of kilograms of paper recycled, y

Answers

Answer:

7x=y

Step-by-step explanation:

7x=y

7 times x(#of weeks)= y (paper recycled)

Hence, the relationship between the number of weeks Franklin's office is on the recycling program is [tex]7x=y[/tex].

What is the equation?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

Here given that,

Franklin's office just started a new recycling program this year. They aim to recycle [tex]7[/tex] kilograms of paper each week.

So, it would be

[tex]7x=y[/tex]

Hence, the relationship between the number of weeks Franklin's office is on the recycling program is [tex]7x=y[/tex].

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please do this for me

Answers

21+96 = 117
180-117=63
X= 63

Answer:

63 degrees

Step-by-step explanation:

HINT: know that in a triangles angles add up to 180 degrees.

1. 96+21= 117

2. 180-117=63

3.  63 degrees

What is the midpoint of this segment

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Answer:

(1,1)

Step-by-step explanation:

Help me for 75 points.

Answers

Answer:

2.6% = 0.026

142% = 71/50

34% = 17/50

Please help me with this!

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Answer:

y=2x+3

Step-by-step explanation:

you should see how to get from one number to the next.

I noticed by multiplying an input by 2 then adding 3 I reach my output.

I would use this for each input to find that it would equal my output every time I used the rule

which one would it be ​

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Answer:

the answer would be c. .........

please help me fast with explanation

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Answer:

1. Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10. The sign of the exponent will depend on the direction you are moving the decimal. 4.8×10−23

2.  If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

3.888×10^10

3.The sign of the exponent will depend on the direction you are moving the decimal.4.2×10−3

Just use the same explanation in number 1 to get the right answer.

A line has slope 5/6 and y-intercept -3

Answers

Answer:

y = (5/6)x - 3

Step-by-step explanation:

yeah-ya..... right?

what is the converse of "If you know Spanish, you can join the Foreign Language Club."

Answers

Answer:

If you can join the foreign language club then you know spanish.

Giving me brainlest or sth will be appreciated

Please help! Geometry

Answers

Answer: g=100

Step-by-step explanation:

Answer:

g = 105

Step-by-step explanation:

G = 105 because the angle across from 105 on the left is also 105 (opposite angles), and g is a corresponding angle to the angle across from the 105 that is given.

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