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

hhhhhhhhhhhheeeeeeeeeelllllpppppppppp me

Answers

Answer:

m<b=107º

Step-by-step explanation:

180-41-32=107

D and B are congruent

967 times 24 equals?

Answers

Answer:

23,208 is the final answer.

Hope this helps!

Answer:

23,208

Hopefully this is correct

A = {1, 3, 5, 7, 9}

B = {2, 4, 6, 8, 10}

C = {1, 5, 6, 7, 9}

A ∪ (B ∩ C) =

Answers

Answer:

Answer is (1,3,5,6,7,9)

If you deposit $400 into an account that offers a 5% interest rate. How much interest will you earn after 1 year?

Answers

Answer: The answer is $20

Multiply 400 by .05 or 5%.

If you wanna know 6 years it would be 536 usd

Explanation:

This would be an compound interest. Meaning that your gain every year would increase exponentially.

The equation to calculate this would be: Kn = K0⋅

(1+p100)n Kn is your savings after the period nK0 is your starting deposit p is the percentage n is the period of interest for your example we would have.

Kn=400⋅

(1+5100)6

A line has a slope of 9 and passes through the point (0, 5). What is its equation in slope -intercept form?

Answers

Answer:

y = 9x + 5

Step-by-step explanation:

Slope = m = 9

(0 , 5)

Slope intercept form: y = mx + b

y = 9x + b

Plugin x = 0 and y = 5

5 = 0 + b

b = 5

y = 9x + 5

-9 + ( -16) =

( -4) – (-6) + (-5) – (8) =

( 3) – (-9) + (-3) – (-2) =

- ( 5) – (-7) + (-8) =

- ( -8) – (-9) + (-4) – (-1) =

( -5) – (-11) + (10) – (8) =

( -1) – (-2) + (-3) – (-6) =

( -4) – ( 4) – (6) + (-5) – (-8) =

(-6) + (-5) – (-8) =

Answers

Answer:

-9 + ( -16) = -25

( -4) – (-6) + (-5) – (8) =-11

( 3) – (-9) + (-3) – (-2) =11

- ( 5) – (-7) + (-8) =-6

- ( -8) – (-9) + (-4) – (-1) =14

( -5) – (-11) + (10) – (8) =8

( -1) – (-2) + (-3) – (-6) =4

( -4) – ( 4) – (6) + (-5) – (-8) =-11

(-6) + (-5) – (-8) =-3

Step-by-step explanation:

Hope it helps

Answers:

-9 + ( -16) = -25

( -4) – (-6) + (-5) – (8) = -11

( 3) – (-9) + (-3) – (-2) = 11

- ( 5) – (-7) + (-8) = -6

- ( -8) – (-9) + (-4) – (-1) = 14

( -5) – (-11) + (10) – (8) = 8

( -1) – (-2) + (-3) – (-6) = 4

( -4) – ( 4) – (6) + (-5) – (-8) = -11

(-6) + (-5) – (-8) = -3

Help pls, will give branliest to right answer

Answers

Answer:

Similar AA

Step-by-step explanation:

By Angle-Angle similarity postulate triangle ABC and triangle DEF are similar.

Answer:

C. similar AA

‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

8.90 x 3.12 will give brainlist

Answers

27.768

Multiply 890 and 312

This equals 277680

We know that there were 4 numbers behind a decimal point

Therefore the last four numbers of 277680 need to be behind a decimal point as well

So you're answer is 27.7680 or 27.768

Identify the factors of the terms of the expression.

6 + 2a + 15b the factors of the terms are?

Answers

Given :

6 + 2a + 15b

To find :-

The factors of the terms of the expression.

Solution :-

First term :-

6 Factors = 1 , 2,3,6

Second term :-

2a Factors = a , 1 , 2

Third term :-

15bb,1,3,5,15

What is the answer of this : 3+5-9*6/2

Answers

Answer:

3+5-9*6/2

3+5-9*3

3+5-27

8-27

-19

Solve for x

A 130
B 120
C 23
D 70

Answers

Answer:

B)120º

Step-by-step explanation:

70+50=x

120=x

Sum of two interior angles=exterior angle

[tex]\\ \sf\longmapsto 50+70=x[/tex]

[tex]\\ \sf\longmapsto x=120[/tex]

Option B

What is the P(Red Diamond Face Card) and the P (Black Face Card) ​

Answers

Answer:

9/1352.

Step-by-step explanation:

P(Red Diamond Face Card) = 3/52.

P (Black Face Card) = 6/52 = 3/26.

So the answer is 3/52 * 3/26

= 9/1352.

Explain why the slope of line a is 2/6.

Answers

Answer:

The slope of a line is 2/6 because slope also means rise over run (y/x). So the line's slope is 2/6 because it goes up (rises) in the y-direction 2 units and moves to the right (runs) 6 units, from one point to another.

Step-by-step explanation:

2x+2x+2=4x+2 one solution, infinite, or no solution

Answers

Answer:

0=0

Step-by-step explanation:

Can someone answer this for me

Answers

x=60° (equilateral triangle)

y=120°
Working: (360°-120°)/2

write 4270000 in scientific notation​

Answers

4.27x10*6
i cant get it to come up properly but its to the power of 6

Show that the expression 1.50(10-r) is equivalent to 15-1.50r

Answers

Answer:

third answer

Step-by-step explanation:

In January, 1950, the minimum wage was $.75. What should the minimum
wage be in July, 2009?

Answers

Answer:

On July 24, 2009, the federal minimum wage will increase to $7.25 per hour. This is the final step of a three-step increase passed in 2007 when the minimum wage was only $5.15. In this last step, about 4.5 million workers will receive a raise, providing an additional $1.6 billion annually in increased wages. However, when adjusted for inflation, the new federal minimum is still less than the minimum wage through most of the period from 1961 to 1981.

Step-by-step explanation:

Find an equation in point-slope form for the line having the slope m= - 4 and containing the point (4,5).
The equation in point-slope form is
(Use integers or fractions for any numbers in the equation.)

Answers

Answer:   y - 5 =  - 4 (x - 4)

Step-by-step explanation:

The point-slope form of a line is (y - y₁) = m(x - x₁)

Since we know the slope (m) is -4

And the point  ( x₁, y₁ ) is (4, 5)

Then we can just plug these into the equation above:

                               ⇒  y - 5 =  - 4 (x - 4)

I often use Desmos to check my answer. As seen below, the equation does pass through the point (4, 5).                                      


Pls help will mark the brainiest

Answers

I’m pretty sure it’s answer a!

how many fifths are in 2? PLEASE HELP

Answers

10 I’m just going to write this cause it has to be 20 characters long to answer

Answer:

10/5 ten fifths are in two

Step-by-step explanation:

10/5 = 2

Tara brought 30 books at a yard sale. She now has 220 books. Which equation can be solved to find b, the number of the books had before the yard sale?

Answers

Answer:

b=220-30

Step-by-step explanation:

willie's school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 10 adult tickets and 4 student tickets for a total of $194. The school took in $182 on the second day selling 7 adult tickets and 7 student tickets. What is the price each one adult ticket and one student ticket? ​

Answers

Adult tickets - $15

Student tickets - $11

First day:

10 tickets * $15 = $150

4 tickets * $11 = $44

Total: $194

Second day:

7 tickets * $15 = $105

7 tickets * $11 = $77

Total: $182

Plz plz help fast
I will mark Brainlyist

Answers

Answer:

forgive me i need points

Step-by-step explanation:

PLSSS HELP THIS IS HARD ANYONE

Answers

Answer:

Option  D

Step-by-step explanation:

f(-1,3) = (3-2 , 2*(-1) = (1, -2)

f(-3,5) = (5-2 , 2*(-3) ) = (3, -6)

f(-1,0) = (0-2 , 2*(-1) = (-2, -2)

factor the following equation

1263 + 14b2 + 30b + 35

Answers

Answer:

Step-by-step explanation:

2 ( 7 b 2 + 15 b + 649 )

Answer:

1298+28b+30b

1298+58b

2(649+29b)

Select all statements that are true about the triangles.

Answers

Answer:

D and E

Step-by-step explanation:

D) Δ ABC  , ΔDCB

AB = DC

BC = CB

AC =  DB

Side Side Side congruent.

E)Δ ABC  , ΔDCB

AB = DC

∠D = ∠A

AC = DB

Side Angle Side congruent.

Answer:

E

Step-by-step explanation:

When we write that 2 triangles are congruent we have to write the letters in order of their corresponding sides so ΔABC has the sides in order

AB, then BC, and then CA

the corresponding sides of the other triangle are

DC, then CB, then BD so the other triangle should be Δ DCB

because (AB≅DC, BC≅CB, CA≅BD)

In this case we eliminate the A,B,C answers.

D is also not correct because we do not know if <ABC is congruent with <DCB

E is correct because we are given the sides AB≅DC, and  CA≅BD and we know that  BC≅CB because of the reflexive property (a line segment is congruent with itself).

We have 3 ≅sides so we can use the Side-Side-Side Congruence Theorem

F is not correct because we have enough information.

PLSSS HLEPP ME OUTT ITS URGENTTTT​

Answers

Answer:

76 and 19 are the answers

What is the volume of a hemisphere with a diameter of 56.7 in, rounded to the nearest tenths of a cubic inch?

Answers

Answer: In ^3

Step-by-step explanation: V = (1/2) (4/3) π(d/2^3

Plug in  

d = 56.7 in

and get V in units of in^3.

938 e vause you plug in rounded

a new car increased in price from 78200 to 136850 what is the percentage increase

Answers

Answer:

The percentage increase is by 1.75

Step-by-step explanation:

78,200 x 1.75 = 136,850

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