3. Study the numerical expression 7 x (9-3). Which one of the following expressions is equivalent to this numerical expression?
A.Multiply 7 by the difference between 9 and 3.
B.Multiply 7 by 9, then subtract 3.
C.Subtract 3 from the product of 7 and 9.
D.Three less than the product of 7 and 9.

Answer:

The answer is                        because                                   , hope this helps :)

Step-by-step explanation:

Answer

3 hours 40 mins

Answer:

54

Step-by-step explanation:

each shelf has 9 books so the equation would be 9x6=54 because there are 6 shelves in total<3

Answer:

begins the trip with 14 gallons of gas in her car.

The car uses up one gallon of gas every 30 miles.

Let g represent the number of gallons of gas she has left in her tank, and let d

represent the total distance

Step-by-step explanation:d = 30(14 - g)

:

For example, if she uses two gallons, there will be 12 gal left in the tank; g=12

d = 30(14 - 12)

d = 30(2)

d = 60 mi  Here you go

Answer:

4 gallons

Step-by-step explanation:

In order to solve this you need to multiply 1.75 times 4 for the total amount of gallons used. That would equal 7. Since we need to find how much she has left, we need to subtract. 11-7=4.

4 gallons of gas will be left after 4 hours of driving.

Hope this helped!! :)

Answer:

C: 23 centimeters

Step-by-step explanation:

Formula for the Area of a trapezoid is top base + bottom base divide by 2 then multiply the height.

8+14 is 22 divide that by 2 would equal 11.

11 times 23 equals 253

Answer: I think it's 36 ft.

Step-by-step explanation:

Answer:

Median:31

Mean:24

Step-by-step explanation:

Answer:

It should be the first one

Step-by-step explanation:

since positive ten would represent going further up and negative ten going further down, the diver would be within ten feet of her current position

Answer:

A) -30 - x = 10 and -30 - x = –10

Step-by-step explanation:

Part 1:

1) Isolate the variable x

-30 - x = 10

-x = 40

2) Multiply both sides by -1

x = -40

Therefore -30 - x = 10 is correct

Part 2:

1) Isolate the variable x

-30 - x = –10

-x = 20

2) Multiply both sides by -1

x = -20

Therefore -30 - x = –10 is also correct

Final Answer: -30 - x = 10 and -30 - x = –10

Answer:

= 0.315

Step-by-step explanation:

hope this helps :)

Answer:

10 days

Step-by-step explanation:

Given data

Deena drinks 2 cups of milk per day

from table

1 cup = 0.25 quarts

Hence she drinks

0.5quarts per day

Hence if 0.5quarts  last for 1 day

5quarts  will last x days

cross multiply

0.5x= 5*1

x= 5/0.5

x=10 days

the answer is 56 degrees

looking at the triangle you can identify it as a right triangle by the square at the top right corner. all right triangles have at least one 90 degree angle, which is what that square marks. the question also gives you the measurement of the second angle wich is 34 degrees. all angles of a triangle have to add up to 180 degrees, so we can add 90 degrees and 34 degrees wich gives us the sum of 124. now if you subtract 124 from 180 you get 56, therefore, the angle x is 56 degrees.

Answer:

A

Step-by-step explanation:

I took the test

Jack is wrong because he used the distributive property wrong. On the top equation, you see 2(4k - 3). The 2 multiplies into the (), so basically you have

2 x 4k - 2 x 3

which gives you

8k - 6

Answer:

Taniyah

Step-by-step explanation:

Taniyah is correct because you need to:

diistribute : 8k - 6 - 6k = 14

combine like terms : 2k - 6 = 14

add 6 to both sides : 2k - 6 + 6 = 14 + 6

simplify : 2k = 20

divide both sides by the same factor : 2k/2 = 20/2

simplify : k = 10

Answer:

Volume = 312

Step-by-step explanation:

H=13

B=12

V=6

Answer:

C. 4

Step-by-step explanation:

We can use power of a point to solve this problem. From this, we can set up the equation:

MN^2 = LM x MK

MK would be the sum of LM and KL because of segment addition postulate. Therefore, we can say MK = 2 + 6 = 8

Now, we can substitute the values we have in the equation above:

MN^2 = 2 x 8

MN^2 = 16

MN = 4

Answer:

purple :0

Step-by-step explanation:

Answering is 20:

Step-by-step explanation:

Because it takes her 5 min for a half of mile so add it up and you get 20

Using proportions, it is found that the temperature after 4 hours was of 0º.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The temperature rose 3º every hour, for 4 hours, hence the total rise was of:

R = 3º x 4 = 12º.

Considering the initial temperature, the the temperature after 4 hours was of:

T = -12º + 12º = 0º.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

Answer:

so I belive the answer is -75/16 simplified as -4 11/16

Step-by-step explanation:

diameter=69

radius=diameter/2=34.5

circumference=2πr

Answer:

Step-by-step explanation:

7. The horizontal translation is 3 units to the right, this is determined by the value that is being added or subtracted to x directly. In this case, x is being subtracted by 3 meaning that it is translated 3 units to the right.

8. It is being translated 2 units up. This is determined by the number that is added to the quadratic equation. In this case, it is increased by 2 which means an upward translation. If it was being subtracted it would be a downward translation.

9. Yes, when a quadratic equation has a negative sign outside of it which changes its values it means that it is being reflected.

Answer:

The radious would be 10.59 in

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

You count the gradient of the line

All od the gradient is 5 jut b is 55

Thus b is different from the others

Answer:

-7

Step-by-step explanation:

If you look at the first number,count how many in between the next number and the one after that.

Answer:

A percentage or percent for short is a fraction; a fraction that always has the denominator as 100. Because the denominator of a percent is always a 100, no matter what the numerator is, we replace 100 with the percent symbol % after the number. By definition, for any number x, x% = x100.

Step-by-step explanation:

Answer:

D. 5√3

Step-by-step explanation:

tan 30° = x/15

or, 1/√3=x/15

or, x= 15/√3 = 5√3

Answer:

D

Step-by-step explanation:

Using the tangent ratio in the right triangle and the exacy value

tan30° = [tex]\frac{1}{\sqrt{3} }[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] , then

tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{x}{15}[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] ( cross- multiply )

3x = 15[tex]\sqrt{3}[/tex] ( divide both sides by 3 )

x = 5[tex]\sqrt{3}[/tex] → D

Answer:

39 tons

Step-by-step explanation:

35 + 4 = 39

Answer:

B. 291.6 cubic centimetres

Step-by-step explanation:

The formula for volume of a rectangular prism is:

[tex]V=lwh[/tex]

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So:

9 × 7.2 × 4.5 = 291.6

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Have a good day :)