Anyone know the answer? I'll give brainliest AND 20 points!

Mathematics

1 answer:

kykrilka [37]3 years ago

5 0

Answer:

You need to solve for one variable in each equation and the substitute that in for the second equation.

Step-by-step explanation:

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Jina has scored 76, 85, and 86 on her previous three tests. What score does she need on her next test so that her average (mean)

Scilla [17]

Hello There!

Follow through these steps:
77 x 4 = 308
76 + 85 + 86 = 247
308 - 247 = 61.

She needs to score 61.

Hope This Helps You!
Good Luck :)

- Hannah ❤

3 0

3 years ago

Can someone help me with this? Please

kkurt [141]

Answer:

What? help you with what

Step-by-step explanation:

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3 years ago

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ra1l [238]

Answer:

180 mm

Step-by-step explanation:

height : cases

105 : 7

constant of proportionality = 105/7

height of 12 cases = 12 x 105/7 = 180 mm

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2 years ago

(r/s)(3) = ?<br><br> please help.

MissTica

Answer:

$\frac{3r}{s}$

4 0

3 years ago

Is that correct? I don’t think it is, can someone tell me the answer

lidiya [134]

It is right but what's the full question

6 0

2 years ago