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timama [110]
3 years ago
7

On the last three chemistryexams a student scored 87, 88​, and 89. What score must the student earn on the next exam to have an

average of at least​ 90?
The student must score at least ___%.
Mathematics
1 answer:
hammer [34]3 years ago
4 0

Answer:96%

Step-by-step explanation: 4 x 90 = 360, 87 + 88 + 89 = 264, 360 - 264 = 96

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C-1/64

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(1/4)(1/4)(1/4)=1/64

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A survey asked 40 students If they play an instrument and if they are in band.
wel

Answer:

352x^2

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40\times 1.25x\times 2.20x\times 3.2040×1.25x×2.20x×3.20

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1 Take out the constants.

(40\times 1.25\times 2.20\times 3.20)xx(40×1.25×2.20×3.20)xx

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3 Simplify  50\times 2.2050×2.20  to  110110.

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5 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

​a

​​ x

​b

​​ =x

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​2

​​  

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pls make me brainlyest have a good day

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3 years ago
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