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IRINA_888 [86]
3 years ago
8

If x = 3 and y = 6, evaluate the following expression: 100 – 3(3y - 4x)

Mathematics
2 answers:
Ronch [10]3 years ago
7 0
Step by step
1). 3 x y = 18
2). 4 x x = 12
3). 18-12 = 6
4). 6 x 3 = 18
5). 100-18 = 82
Verdich [7]3 years ago
5 0

Answer:

100 – 3(3(6) - 4(3)) = 82

Step-by-step explanation:

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What is a number line for 5a + 18 < -27?
Colt1911 [192]

Step-by-step explanation:

5a + 18 <  - 27 \\  \\  \therefore \: 5a  <  - 27 - 18 \\  \\  \therefore \: 5a  <  - 45 \\  \\  \therefore \: a  <   \frac{ - 45}{5}  \\  \\ \therefore \: a  <    - 9

8 0
3 years ago
What is 1/2 divided by 1/3
Artemon [7]

Answer:

\frac{3}{2}

Step-by-step explanation:

\frac{1}{2} ÷ \frac{1}{3}

The reciprocal of  \frac{1}{3} is 3, so finding the reciprocal will replace the division sign with a multiplication sign.

= \frac{1}{2} x 3

= \frac{3}{2} or 1\frac{1}{2} or 1.5

6 0
3 years ago
Peter invests $1000 at 4% compounded annually for 10 years and Jose invests $900 compounded annually at 5% for 11 years. Who end
Nesterboy [21]

Answer:

Jose ends up with more money with $59 more than Peter.

Step-by-step explanation:

To determine the amount they will have, you have to use the formula to calculate the future value:

FV=PV(1+r)^n

FV= future value

PV= present value

r= rate of interest

n= number of periods of time

-Peter:

FV=1,000*(1+0.04)^10

FV=1,000*1.48

FV=1,480

-Jose:

FV=900*(1+0.05)^11

FV=900*1.71

FV=1,539

Difference: $1,539-$1,480=$59

According to this, the answer is that Jose ends up with more money with $59 more than Peter.

6 0
3 years ago
The mass of Earth is about 6 X 1024
storchak [24]

Answer:

81

Step-by-step explanation:

To do "how many times greater" problems, you divide.  Think how you would answer this:  How many times greater is 48 than 6?  Dividing the larger 48 by the smaller 6 gives 8.  48 is 8 times greater than 6.

Do the same thing for these two masses.

6 x 10^24 divided by 7.4 x 10^22 is about 81.

The attached image shows a TI-83 display.

7 0
3 years ago
A city has 3 new houses for every 9 old houses. If there are 21 new houses in the city, how many old houses are there?
kipiarov [429]
To find your answer you would divide 21 by 3 which would be 7, once you've got 7 you would multiply it by 9 which would give you the amount of old houses that there is which would be 63.
5 0
3 years ago
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