3 years ago

What's 30 inches decreased by 30%

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

Answer:

Step-by-step explanation:

First, we would find 30% of 30, which would be 9. Then we would subtract 9 from 30 because we are decreasing it by 30%. That means the answer is 30-9, which is 21.

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What two numbers have a sum of 215 and a difference of 137

BabaBlast [244]

Answer:

see below

Step-by-step explanation:

let x = big number

let you = small number

x + y = 215-------> (1)

x - y = 137 ------>(2)

(1)

x = 215 - y ----->(1)

substitute 1 into 2

215 - y -y = 137

-2 y = 78

y = 39

substitute y = 39 into (1)

x = 215 - (39)

x = 176

thus the numbers are 176 & 39

hope this helps

please mark it brainliest

it took me quite long to do this

3 0

3 years ago

Angle x is conterminal with angle y. If the measure of angle x is greater than the measure of angle y, which statement is true r

fiasKO [112]

9514 1404 393

Answer:

x = y + 360n, for any positive integer n

Step-by-step explanation:

Since x is greater than y, something must be added to y to get x. Angles have the same co-terminal ray at multiples of 360°. Then the amount added to y must be some multiple of 360°:

x = y + 360n . . . . . for positive integer n

8 0

2 years ago

PLEASE HELP!!! A blueprint for a fence has a scale of 1:40. The fence in the blueprint is 6in. What is the length of the actual

EastWind [94]

1 : 40 = 6 : 240

On the ground the fence would be 240 inches long

240 / 12 = 20 feet long fnce

4 0

3 years ago

F=6 and p = 2<br> 3f – 9p + 8 + f

Tamiku [17]

Answer:

Step-by-step explanation: