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svetlana [45]
4 years ago
8

Solve -6r-9(-6r-2)=3r+9(5r+7)

Mathematics
2 answers:
abruzzese [7]4 years ago
6 0
Use the app Photomath it helps a lot
tresset_1 [31]4 years ago
5 0

First, we need to get rid of the parenthesis from -6r-9(-6r-2) = 3r+9(5r+7):

-9(-6r-2) = 54r+18.

9(5r+7) = 45r+63.

If we substitute the new expressions in, we would get:

6r+54r+18 = 3r+45r+63.

Then, we combine like terms:

60r+18 = 48r+63

We subtract 48r from both sides:

60r+18-48r = 48r-48r+63

12r+18 = 63

Then, we subtract 18 from both sides:

12r+18-18 = 63-18

12r = 45

In order to completely isoslate r, we need to divide both sides by 12:

r = 45/12 = 3 3/4

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In the measurement of 67.93 cm, which digit is estimated? click on the estimated digit
scoundrel [369]
When it comes to measurement, the most accurate estimate would be the whole number. A ruler has calibrated marks. It would be easy to locate 25. But when it is located between 25 to 26, you would have to estimate the decimal points. Generally, calibration marks are up to the tenths digit. For further digits, that would only an estimation. So, the estimated digit in this problem is 3 in the hundredths place.
8 0
3 years ago
Name the quadrant that point A lies inA) Quadrant IB) Quadrant IIC) Quadrant IIID) Quadrant IV
Blizzard [7]

Given the figure, we can deduce the following information:

1. Point A lies in the upper left side of the Cartesian Plane.

Based on the given figure, we must note that if the point lies in the upper left side of the Cartesian Plane or the x-coordinate is negative but the y-coordinate is positive, it should be in the Quadrant II.

Therefore, the answer is B. Quadrant II.

4 0
1 year ago
-10.9p + 3.9 = -9.18
Debora [2.8K]

Steps to solve:

-10.9p + 3.9 = -9.18

~Subtract 3.9 to both sides

-10.9p =  -13.08

~Divide -10/9 to both sides

p = 13.08/10.9

p = 1 1/5

Best of Luck!

5 0
3 years ago
The cheetah is 7/6 the Perigen falcon is 10/3
Brilliant_brown [7]
The answer is 2  \frac{1}{6}.

Explanation:

In order to subtract the fractions, we must make them like fractions. To do this, the denominators must be the same by multiplying (only). Since the first fraction is \frac{10}{3}, 3 can be multiplied by 2 to get 6, which is the other fraction, we can multiply it. Whatever you do to the denominator you must do to the numerator. Now multiply 2 by the numerator (10) to get \frac{20}{6}. Now we can subtract the fractions \frac{20}{6} and \frac{7}{6} to get 13/6. Since this fraction is not in mixed fraction form yet, we must do that first.  goes into 13 twice, so the whole number is 2 and there is still 1 left, making the fraction \frac{1}{6}. Therefore, the difference is 2 \frac{1}{6}.
8 0
3 years ago
1.3 lesson help please
Airida [17]

Answer:

1. 125

2. 25

3. 40

4. 39

First question:

(15-10)^2 + (15-5)^2

parentheses first to get 5^2 + (15-5)^2

exponents next to get 25 + (15-5)^2

parentheses again 25 + 10^2

exponents again 25 + 100 = 125

Second question:

simplify the exponents (3 *3) + (4 * 4) + (2 * 2) to get 9 + 16 + 4 = 29

Third question:

simplify in the parentheses 6 1/7 - 1/7 = 6

divide 60 by 6 to get 10

multiply 10 by 4 to get 40!

Fourth question:

simplify the fractions to get 1/3 + 8/3 = 3

multiply the 3 by 13 to get 39

7 0
3 years ago
Read 2 more answers
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