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Mumz [18]
4 years ago
7

What is the answer to -4-0.2x+11=-0.8x+10?

Mathematics
1 answer:
IceJOKER [234]4 years ago
4 0

-4-0.2x+11=-0.8x+10

combine like terms -4+11=7

-0.2x+7=-0.8x+10

subtract 10-7=3

-0.2x=-0.8x+3

change -0.8x to positive 0.8x and add it. -0.2x+0.8x=0.6x

0.6x=3

divide. 3/0.6x=5

x=5

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You deposit $650 in a savings account. How long does it take an account with an annual interest rate of 5% to earn $178.25 in in
Ugo [173]

Answer:

about 5 years 6 months

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

then, solving our equation

t = 178.25 / ( 650 × 0.05 ) = 5.4846

t = 5.4846 years

The time required to

accumulate simple interest of $ 178.25

from a principal of $ 650.00

at an interest rate of 5% per year

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7 0
3 years ago
You are flying a kite and have let out 80m of string. The kite's angle of elevation with
frosja888 [35]

The kite is 51.42m above the ground

The set up is a right triangle with the following parameters;

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  • Angle of elevation = 40 degrees

Required

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Using the SOH CAH TOA identity

sin theta = opp/hyp

sin 40 = H/80

H = 80sin40

H = 51.42m

Hence the kite is 51.42m above the ground

Learn more angle of elevation here: brainly.com/question/24847491

5 0
3 years ago
If 2 x to the third power is equal to 54, what is two times X to the third power equal to?
Tresset [83]
Hello,

if 2x²=54 then (2x)²=4x²=2*2x=2*54=108
6 0
3 years ago
Find the difference.<br> 2-26 - (-20)
Yanka [14]

Answer:

-4

Step-by-step explanation:

2-26=-24

-24-(-20) basically says -24+20=-4

7 0
3 years ago
Read 2 more answers
Solve the equation for b: A= (1/2)(b)(h)
fiasKO [112]

Answer:

2A/h = b

Step-by-step explanation:

A= (1/2)(b)(h)

Multiply each side by 2

2A = 2*1/2 *b*h

2A = bh

Divide each side by h

2A/h = bh/h

2A/h = b

5 0
3 years ago
Read 2 more answers
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