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FromTheMoon [43]
3 years ago
12

Please help with both and leave a small explanation! I wanna double check my answers! Also I’ll mark brainliest :)

Mathematics
2 answers:
77julia77 [94]3 years ago
7 0

Answer:

1. 10m

2. 18 ft

Step-by-step explanation:

These are just ratios. They are both essentially doubling

liberstina [14]3 years ago
3 0

Answer:

7. 10meters convert to cm and 8. 4.5

Step-by-step explanation:

1*5=5

2*5=10

10/5=9/4.5

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Can someone please help for brainlest
Scilla [17]

Answer:

answer would be the new area wil be 1/2 of the old area

Step-by-step explanation:

I'm pretty sure it's right hope this helps

8 0
3 years ago
Izzy had an 82 and an 88 on his first two tests and believed that he did well enough on his final exam to keep his B average.​ H
Anastaziya [24]

Answer:

73

Step-by-step explanation:

to find the mean you need to add up all grades and divide if by the number of terms you added

(82 + 88 + x) ÷ 3 = 69 (since we don't know the third grade let's call it x)

170 + x = 69 × 3

x = 37

if the digits transposed the the actual grade would be 73

5 0
3 years ago
{y=-x+1<br> {y=4x-14<br> please help me <br> my paper is due today
Temka [501]

- x + 1 = 4x - 14 \\  - x - 4x =  - 14 - 1 \\  - 5x =  - 15 \\ x = 3

Substitute x = 3 in any given equations. I will do in y = - x + 1

y =  - x + 1 \\ y =  - 3 + 1 \\ y =  - 2

Therefore the answer is (3,-2)

7 0
3 years ago
A population of butterflies grows in such a way that each generation is simply 1.5 times the previous generation. There were 350
kap26 [50]

Answer:

378.5 or just 378

Step-by-step explanation:

This is a linear model with x representing the number of generations that's gone by, y is the number of butterflies after x number of generations has gone by, and the 350 represents the number of butterflies initially (before any time has gone by.  When x = 0, y = 350 so that's the y-intercept of our equation.)

The form for a linear equation is y = mx + b, where m is the rate of change and b is the y-intercept, the initial amount when x = 0.

Our rate of change is 1.5 and the initial amount of butterflies is 350, so filling in the equation we get a model of y = 1.5x + 350.

If we want y when x = 19, plug 19 in for x and solve for y:

y = 1.5(19) + 350

y = 378.5

Since we can't have .5 of a butterfly we will round down to 378

7 0
3 years ago
Hi could you help me please :)
yKpoI14uk [10]

Answer:

Its B

Step-by-step explanation:

I remember doing this :)

3 0
3 years ago
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