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bearhunter [10]
3 years ago
5

Find y if the line through (5, 2) and (7, y) has a slope of 4. Y= ___

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0
Y=10

(y-2):(7-5)=4
y-2=4(7-5)
y-2=28-20
y=8+2
y=10
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Which two ratios form a proportion?
s2008m [1.1K]

Answer:

02:3 and 12:18

Step-by-step explanation:

A proportion is formed when the larger ratio can be simplified to equal the smaller ratio:

#1

02:3 and 4:12

Reducing the larger ratio: 4:12=1:3

Hence, not a proportion.

#2

02:3 and 6:12

Reducing the larger ratio: 6:12=1:2

Hence, not a proportion.

#3

02:3 and 12:18

Reducing the larger ratio: 12:18=2:3

Hence, they form a proportion.

#4

02:3 and 12:18

Reducing the larger ratio: 12:36=1:3

Hence, not a proportion.

4 0
3 years ago
Pls answer this my friend says i cant do it i cant but i wanna prove him wrong
Vladimir [108]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
For spring cleanups, a landscaper charges a flat fee of $60 plus $20 for each hour of labor. Which equation models the cost in d
o-na [289]

Answer:

80

Step-by-step explanation:

I hope this will help. I was really calculating maybe keep on trying on A peice of paper.:)

6 0
2 years ago
The length of the minute hand of a clock is
svetlana [45]

Answer:

Therefore,

The length of the path traced  by the outer tip of the minute hand in one hour, is 88 inches.

Step-by-step explanation:

Given:

The length of the minute hand of a clock is,

Which is as Radius,

Therefore,

Radius = r = length of the minute hand = 14\ inches

pi = 22/7

To Find:

The length of the path traced  by the outer tip of the minute hand in one hour, will be One full rotation, that is

Circumference, C = ?

Solution:

Circumference, is given by,

Circumference = 2\pi r

Circumference = 2\times \dfrac{22}{7}\times 14=88\ inches

Therefore,

The length of the path traced  by the outer tip of the minute hand in one hour, is 88 inches.

7 0
3 years ago
A savings account is started with an initial deposit of $700. The account earns 1.5% interest compounded
marusya05 [52]

Answer:

  (a)  A = 700×1.015^t

  (b)  36.2 years

Step-by-step explanation:

(a) Each year, the account value is multiplied by (1 + 1.5%) = 1.015. Repeated multiplication is signified using an exponent. In t years, when the account has been multiplied by 1.015 t times, the account value will be ...

  A = $700×1.015^t

__

(b) You want to find t when A=$1200. Logarithms are involved.

  1200 = 700×1.015^t . . . . use 1200 for A

  1200/700 = 1.015^t . . . . . divide by 700

  log(12/7) = t×log(1.015) . . . . . take logarithms

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It will take about 36.2 years for the account balance to reach $1200.

4 0
3 years ago
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