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3 years ago

Please help me..stuck on problem.

Mathematics

1 answer:

Dvinal [7]3 years ago

4 0

7a
TSA = 2lw<span> + 2</span>lh<span> + 2</span><span>wh
TSA = 140 + 70 + 100 = 310 ft^2

7b

310 x $4 =$1240
cost = </span>$1240

7c

V= wlh = <span>7×10×5 = </span><span>350 ft^3</span>

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A baseball player reaches first base 3 out of 10 times he is at bat. If the baseball player bats 80 times, about how many times

Amanda [17]

Answer:

I think the answer is 24.

Step-by-step explanation:

I think the answer is 24 because if the baseball player hit the bat and ran the base 3 out of 10 times, then you would multiply 8 x 3 to get 24 out of 80. I don't know if this is the correct answer, this is just what I think it may be.

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3 years ago

The tuition costs, C, for a local community college are modeled by C(h) = 250 + 200h, where h represents the number of credit ho

pochemuha

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2.5

Step-by-step explanation: i just solved it and it was correct. 300-250=50 50 divided by 20 is 2.5. you divide it by 20 because you have to isolate h in 20h by itself. and to do that you divide 20h by 20

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3 years ago

A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. The

tatyana61 [14]

Answer:a+b

Step-by-step explanation:

You can use the variables a and b to solve your equation if you need

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3 years ago

Use elimination to solve.<br> 3y-6x=7<br> -4y-3x=9

shtirl [24]

Answer:

x = -5/3, y = -1 or $(-\frac{5}{3}, -1)$

Step-by-step explanation:

Solving systems of linear equations using process of elimination involves eliminating one of the variables (and its coefficient) in order to solve the other variable either through addition or subtraction. However, there may be other mathematical operations necessary before one of the variables can be eliminated.

Equation 1: 3y - 6x = 7

Equation 2: -4y - 3x = 9

<h3>Step 1: Multiply Equation 2 by -2:</h3>

(-2)(-4y - 3x) = 9 (-2)

8y + 6x = -18

<h3>Step 2: Add "8y + 6x = -18" to Equation 1:</h3>

8y + 6x = -18

+ 3y - 6x = 7

11y = -11

<h3>Step 3: Divide both sides by 11 to solve for y:</h3>

$\frac{11y}{11} = \frac{-11}{11}$

y = -1

<h3>Step 4: Substitute y = -1 into Equation 2 to solve for x: </h3>

-4(-1) - 3x = 9

4 - 3x = 9

<h3>Step 5: Subtract 4 from both sides:</h3>

4 - 4 - 3x = 9 - 4

- 3x = 5

<h3>Step 6: Divide both sides by -3 to solve for x:</h3>

$\frac{-3x}{-3} = \frac{5}{-3}$

$x = - \frac{5}{3}$

Verify whether the values for x and y are correct by substituting their values into both equations:

x = -5/3, y = -1

Equation 1: 3y - 6x = 7

$3(-1) - 6(-\frac{5}{3}) = 7$

-3 + 10 = 7

7 = 7 (True statement).

Equation 2: -4y - 3x = 9

-4(-1) - 3 (-5/3) = 9

$-4(-1) - 3(-\frac{5}{3}) = 9$

4 + 5 = 9

9 = 9 (True statement).

Therefore, x = -5/3 and y = -1 are the solutions to the given systems of linear equations.

8 0

3 years ago

I need an answer ASAP

Misha Larkins [42]

Answer:

-6

Step-by-step explanation:

because the roots are the x values of where the function crosses the x axis

so thats at -2 and 3

and product is multiplication

so -2×3= -6

3 0

3 years ago

Read 2 more answers