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2 years ago

Please help me, I will award brainliest!!

Mathematics

1 answer:

UNO [17]2 years ago

5 0

Let's say x = hours washing cars and 13-x = hours walking dogs.

so 10*(x) + 9*(13-x) = 122, which is 10x + 9(13-x) = 122. that would be your system.

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Find the surface area of the composite solid.

natulia [17]

Answer:

Step-by-step explanation:

$440.4 + 5\cdot(\frac12\cdot16\cdot20)=440.4+800=1240.4\ mm^2$

4 0

2 years ago

What are the steps to 50p+5=225 in an equation

sleet_krkn [62]

Answer:

p = 22/5

Step-by-step explanation:

50p+5=225

Subtract 5 from each side

50p+5-5=225-5

50p = 220

Divide by 50

50p/50 = 220/50

p = 22/5

7 0

3 years ago

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If a meatball recipe calls for 10 pounds of ground beef is 5 kilograms of ground beef enough to make the meatballs

rodikova [14]

Answer: Yes. 5 kilograms is a little more than enough.

Step-by-step explanation:

Use the conversion factor. 1 kilogram = 2.20462 pounds

We can round that to 2.2 for a question like this.

5 × 2.2 = 11 pounds

8 0

2 years ago

Solve for x: 6x – 8y = 12

Tcecarenko [31]

Hi there!

Since we have 2 variables in the given equation, and you only want to solve for one, the other will end up in your answer.

$6x + 8y = 12$

Step 1) Add 8y to both sides.

$6x - 8y + 8y = 12 + 8y 6x = 8y + 12$

Step 2) Divide both sides by 6.

$\frac{6x}{6} = \frac{8y + 12}{6}$

$x = \frac{4}{3} y + 2$

Final Answer -

$x = \frac{4}{3} y + 2$

Hope this helps! :D

7 0

2 years ago

Read 2 more answers

Question Help When purchasing bulk orders of batteries, a toy manufacturer uses this acceptance sampling plan: Randomly select a

S_A_V [24]

Answer:

Step-by-step explanation:

Here X no of defective batteries is binomial with p = 1% = 0.01

q = 1-p=0.99

(Because each battery is independent and there are only two outcomes)

Prob that shipment is accepted is for n =36, $P(X\leq 2)$

=P(x=0,1,2)

= $\Sigma^2_0 36Cr (0.01)^r (0.99)^{36-r}$

= 0.9944

8 0

3 years ago

Read 2 more answers