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11111nata11111 [884]
2 years ago
15

Cheryl read for 30 minutes twice yesterday.Today she read for twice as long as she did yesterday.choose the expression that is a

correct translation of the problem.
Mathematics
1 answer:
mars1129 [50]2 years ago
4 0

Answer:

(30x2)x2

Step-by-step explanation:

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I will mark brainliest if correct please answer fast I will give 10 points to the first person who answers
attashe74 [19]

Answer:

99\ in^{2}

Step-by-step explanation:

Area of any triangle could be always calculated as base length multiplied by the height perpendicular to the aforementioned base divided by 2. Therefore:

A = 18 * 11 / 2 = 198 / 2 = 99

4 0
3 years ago
HELPPPP please !!!!!,!!?
lions [1.4K]

Mercury has the greater density than that of Venus .

4 0
3 years ago
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I need some help please
ExtremeBDS [4]
Using the law of cosins

sin(angle) = Opposite Leg / Hypotenuse

The angle is given as 35 degree and the hypotenuse is given as 30 feet.

Sin(35) = X ( opposite leg) / 30

X = 30 * sin(35)

x = 17.2 feet.

Total height = 17.2 + 6.5 = 23.7, round to 24 feet.

The answer is 24 feet.
6 0
3 years ago
Determine if (3, 7) is a Solution or not Solution to the linear system.
spayn [35]

Answer:

y = 2x + 1 --> linear

y = -4x + 7 --> non-linear

Not a solution for linear system.

Step-by-step explanation:

for (a), y = 2x+1, substitute the x and y values. keep in mind, that in a linear pair, (x, y). So, for the first equation you get:

7 = 2x3 + 1. This is correct, because 6 + 1 is 7. Therefore, (a) is linear.

for (b), we have to substitute our values again. You get:

7 = -4x3 + 7, which is

7 = -12+7, which is not true. So, (b) is not linear.

This means that for the linear pair (3, 7), it does not satisfy both equations, which means that it is not a solution for the linear system.

7 0
2 years ago
This is the hardest question we'll for me
Natali [406]
Cost of tablet $315
monthly payments of $25

a. 315 - 25 = $290
b. After each payment, the amount owed decreases. Therefore, the balance decreases.  
second part of this: write equation for calculating the amount owed a for any number of payments n                      $      $25(n-1)  =a

I cant draw a graph on here for you, but as n increases, then a decreases
d. as n increases by 1, how does a change?  Answer: A decreases by $25 each time n increases by one
e. He will need to make 12.6 payments

5 0
3 years ago
Read 2 more answers
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