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ololo11 [35]
3 years ago
11

Jade has grades of 91 and 90 in Math. What grade must she obtain on the third quarter to get an average of 91?

Mathematics
1 answer:
nadya68 [22]3 years ago
4 0

Answer:

91×3=273

91+90+x=273

181+x=273

x=92

92 is the answer

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If the relationship is a proportional relationship weite an equation that where x represents the number of adults and y represen
Anestetic [448]

Answer:

y = kx

Step-by-step explanation:

In proportional relationships, the value of one variable increases as the other increases or decreases as the other decreases. It is denoted mathematically as  y ∝ x where x and y are the variables. It follows that

y = kx where k is the proportionality constant.

So in the relationship where x represents the number of adults, and y represents the number of students,

y ∝ x and y = kx

y = kx is the required equation

5 0
3 years ago
A bag contains 10 red marbles, 7 green marbles. and 8 striped marbles. A marble is picked, then put back into bag. Find P(green
SIZIF [17.4K]

G = number of green = 7

S = number of striped = 8

T = number total = 10+7+8 = 25

probability of picking green = P(G) = G/T = 7/25

probability of picking striped = P(S) = S/T = 8/25

P(green and striped) = P(G)*P(S)  ... events are independent

P(green and striped) = (7/25)*(8/25)

P(green and striped) = (7*8)/(25*25)

P(green and striped) = 56/625

P(green and striped) = 0.0896

--------------------------------

In summary, the answer as a fraction is 56/625

In decimal form, the answer is 0.0896

The value 0.0896 can be converted to percent form to get 8.96%

8 0
3 years ago
Juan manages an appliance store. In July, sales were $161,800. In August, sales were $117,305. What was the rate of change? That
babunello [35]
I think it is a 27.5% decrease
4 0
3 years ago
Which situation represents a proportional relationship?
sergiy2304 [10]

Answer:

D

Step-by-step explanation:

8 0
2 years ago
On Wednesday, 30 students went to after school tutoring. On Thursday, 6 students went. What is the percent decrease in the numbe
Y_Kistochka [10]
Hmm, I believe the answer is 80%. 
It is a decrease.
30 - 6 = 24. 
24/30 = 80% decrease from Wednesday. 

6 0
3 years ago
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