All categories

3 years ago

If a÷b=3 and a+b=2 what is a – b?

Mathematics

1 answer:

77julia77 [94]3 years ago

6 0

A=2-b
2-b/b=3
2-b=3b
B=1/2
A=3/2
A-b=3/2-1/2=1
Answer is 1

You might be interested in

Square root of 129 is greater than, less than or equal to 95/8?

Tanzania [10]

√129 is less than $\frac{95}{8}$ .

$\large\mathfrak{{\pmb{\underline{\purple{Step-by-step\:explanation}}{\purple{:}}}}}$

Let us first solve for √129.

➝ $\:\sqrt{129}$

➝ $\:11.3578$

Now,

➝ $\: \frac{95}{8}$

➝ $\:11.875$

Clearly,

➵ $\:11.3578 < 11.875$

➵ $\: \sqrt{129} < \frac{95}{8}$

Hence, √129 is less than $\frac{95}{8}$ .

$\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35☂}}}}}$

5 0

3 years ago

Copy these incomplete number lines. Label the missing numbers on each of them.

Alexeev081 [22]

20/2 = 10

0, 10, 20, 30, 40, 50

32.4/4 = 8.1

0, 8.1, 16.2, 24.3, 32.4, 40.5

8.8/4 = 2.2

0, 2.2, 4.4, 6.6, 8.8, 11

10/3 = 3.3

0, 3.3, 6.7, 10, 13.3, 16.7

3 0

3 years ago

Read 2 more answers

Use lengths |OQ| = 9.4 units and |OQ’| = 17.1 units to determine the scale factor r of dilation D (round to the nearest hundredt

NNADVOKAT [17]

Answer:

Scale factor = 1.82 units.

Step-by-step explanation:

We have been given that side length OQ of our prei-mage is 9.4 units and side length OQ' after dilation is 17.1 units. Since our pre-image (original image) is smaller than our new image, so our scale factor (r) will be greater than 1.

Since we know that in a dilation, the sides of the pre-image and the corresponding sides of the image are proportional, so we will use proportion to find a scale factor our given side lengths as:

$\frac{OQ'}{OQ}=\frac{17.1}{9.4}$

$\frac{OQ'}{OQ}=1.8191$

Upon multiplying both sides of our equation by OQ we will get,

$\frac{OQ'}{OQ}\times OQ=1.8191\times OQ$

$OQ'=1.8191\times OQ$

Upon rounding our answer to nearest hundredths place we will get,

$OQ'\approx 1.82\times OQ$

Since side length OQ' is 1.82 times side length OQ, therefore, our scale factor (r) will be 1.82 units.

8 0

3 years ago

The total surface area of a cube is 384cm3 the length of the edge of the cube is?<br>

Troyanec [42]

<h3>Using the formula $\: \:A = 6 {a}^{2}$ </h3>

Solving for a

4 0

2 years ago

The growth rate of nominal gdp between 1998 9063 <br> and 2018 20501 was

Alex73 [517]

Answer:

The nominal GDP growth rate between 1998 and 2018 was 126.20 percent.

Step-by-step explanation:

Given that in 1998 the country's GDP was $ 9,063 and in 2018 it was $ 20,501, to determine the nominal growth rate of the nation's GDP, the following calculation must be made:

9,063 = 100

20,501 = X

((20,501 x 100) / 9,063) = X

2,050,100 / 9,063 = X

226.20 = X

226.20 - 100 = 126.20

Therefore, the nominal GDP growth rate between 1998 and 2018 was 126.20 percent.

8 0

3 years ago

If a÷b=3 and a+b=2 what is a – b?​

If a÷b=3 and a+b=2 what is a – b?