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vova2212 [387]
3 years ago
11

(04.05)Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. Wh

at is Erika’s percent of error?
28.3%
2.8%
39.4%
32.5%
Mathematics
1 answer:
kkurt [141]3 years ago
7 0

Answer:

28.3

Step-by-step explanation:

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Evaluate 7+q(r−8)2 when q = 3 and r = 10.
liberstina [14]

<u>Answer:</u>

  • The solution of the expression is 19.

<u>Step-by-step explanation:</u>

<u>Given:</u>

  • q = 3
  • r = 10

<u>Work:</u>

  • => 7 + q(r − 8)2
  • => 7 + 3(10 - 8)2
  • => 7 + 6(10 - 8)
  • => 7 + 6(2)
  • => 7 + 12
  • => 19

Hence, <u>the solution of the expression is 19.</u>

Hoped this helped.

BrainiacUser1357

8 0
3 years ago
Read 2 more answers
Suppose that 15 inches of wire costs 45 cents. At the same rate, how many inches of wire can be bought for 24 cents? Please help
Tanya [424]
15\ inches\ cost\ 45\ cents\\&#10;x\ inches\ cost\ 24\ cents\\\\&#10;proportion:\\&#10;15-45\\&#10;x-24\\\\&#10;cross\ multiplication\\\\&#10;15*24=45x\\\\&#10;360=45x\ \ \ | divide\ by\ 45\\\\&#10;x=8\\\\&#10;8\ inches\ of \ wire\ cost\ 24\ cents.
6 0
3 years ago
The energy that generates wind comes from what source A. Soar radiation B. Magnetic attraction C. Moon's gravity D. Coriolis eff
lbvjy [14]

Answer:

A. Soar radiation

Step-by-step explanation:

Blowing wind rotates the wind turbine and generates the energy called wind energy. More the speed of wind, more the energy can be generated.

That's how, wind energy depends on the speed of the wind and the speed of the wind is due to the pressure difference in various regions.

The zone having more solar radiation has low pressure and the zone having less solar radiation have high pressure of air and winds flows from high to low-pressure zone.

Therefore, the energy that generates wind comes from what source soar radiation.

Hence, option (A) is correct.

8 0
3 years ago
This also makes no sense
ladessa [460]
4(5)+4(2)=4(5+2)
=4(7)
=28
8(4)-8(2)=8(4-2)
=8(2)
=16
Same thing continues on
4 0
3 years ago
Read 2 more answers
X^2+10x+16=0 how to slove this question?
Ksju [112]
You can factor this
x^2 + 10x  + 16 = 0

(x + 8)(x + 2) = 0

so x + 8 =0  or x + 2 = 0 

x = -8, -2
8 0
3 years ago
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