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4 years ago

3(5x - 2) - 6x = 3(3x + 2)

Mathematics

1 answer:

kap26 [50]4 years ago

8 0

9x-6=9x+6
9x-9x=6+6
x=12

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BIG IDEAS MATH<br> Find the value of x so that the ratios x:9 and 5:6 are equivalent.<br> X =

MAVERICK [17]

Answer:

x = 7.5

Step-by-step explanation:

The ratios can be written as a fraction. The word "and" can be replaced with the = sign. Now create a proportion.

$\frac{x}{9} = \frac{5}{6}$

Cross multiply

6x = 9(5)

6x = 45

Divide by 6 on both sides

6x/6 = 45/6

x = 7.5

6 0

3 years ago

Help me please!!!! I will mark as brainliest

Ainat [17]

Answer:

1 C

2 A

3 D

4 B

Step-by-step explanation:

7 0

3 years ago

How do i anwser this question plz help thanks :)

sergejj [24]

$2.50+$2.80=The first box $2.68x48)=The second box the answers for both you find on the calculator

4 0

3 years ago

Read 2 more answers

What is the solution for 7.5x-100>79.86+5.8x

Gwar [14]

7.5x - 100 > 79.86 + 5.8x
7.5x - 5.8x > 79.86 + 100
1.7x > 179.86
x > 179.86 / 1.7
x > 105.8

8 0

3 years ago

Use the fact that 2 1/2 divide 1/8 =20 to find 2 1/2 divide 5/8

Tasya [4]

Answer:

Step-by-step explanation:

Given that $2\frac 1 2 \div \frac 1 8 =20$

$\Rightarrow \frac 5 2 \div \frac 1 8 =20$

$\Rightarrow \frac 5 2 \times 8 1 =20 \cdots(i)$

Now, $2\frac 1 2 \div \frac 5 8$ $= \frac 5 2 \div \frac 5 8$ $=\frac 5 2 \times \frac 8 5$

This can be written as

$\frac 5 2 \times \frac 8 5=\frac 5 2 \times \left( \frac 8 1 \times \frac 1 5\right)$ [as $\frac 8 5=\frac 8 1 \times \frac 1 5$ ]

$=\left(\frac 5 2 \times \frac 8 1 \right)\times \frac 1 5$

$=20 \times \frac 1 5$ [ by using equation (i)]

Hence, $2\frac 1 2 \div \frac 5 8=4$

7 0

3 years ago