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asambeis [7]
4 years ago
7

7.8 is 65% of what number

Mathematics
1 answer:
Natalka [10]4 years ago
3 0
7.8 = 0.65x

x = 100/65 * 78/10

x = 10/5 * 6

x = 12
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a driver is below the surface of the water at - 15m. he dives down by 6m, then rises 4m where is he now​
nevsk [136]

Given:

A driver is below the surface of the water at - 15m. he dives down by 6m, then rises 4m.

To find:

The current location of the driver.

Solution:

In this problem, negative sign is used for downward direction or the distance below the surface of the water.

Initial location = -15 m

Dives down by 6m, it means - 6m,  then rises 4m, it means 4 m.

Now, the current location is

-15 m-6m+4m

=-21m+4m

=-17m

Therefore, the correct location of the driver is at -17 m it means her is 17 m  below the surface of the water.

6 0
3 years ago
Find a number such that its two-third is equal to 5/4
levacccp [35]

Answer:

x = 15/8.

Step-by-step explanation:

Create an equation, let the number be x:

2/3 * x = 5/4

Now we multiply both sides by 3/2

3/2 * 2/3 x = 5/4 * 3/2

x = 15/8.

7 0
3 years ago
For which equations is 8 a solution? Select the four correct answer
maxonik [38]

Answer:

I <em>believe</em> the answers are= 2, 3, 6, 8

Step-by-step explanation:

For #2, you would subtract 2 from both sides. 10-2=8. x=8.

For #3, you would add 4 to both sides of the equation, making the final answer: x=8

For #6, you would divide both sides by 3. 24 divided by three is 8.

For #8, I multiplied the whole equation by 8, which is the denominator of x/8. 1 times 8=8. The final answer would be x=8.

Hope this helps!  

8 0
3 years ago
Read 2 more answers
...................................
DiKsa [7]

Answer:

1/6

Step-by-step explanation:

i dont know if this is correct

4 0
2 years ago
3. Choose the equation of the line parallel to the line 5 = -10x - 5y that passes through the point (-2,5). A y=-2x + 1 C y=x-5
storchak [24]

Answer:

y = -2x + 1

Step-by-step explanation:

The equation is in standard form, first, we need to convert it to slope-intercept form.

5 = -10x - 5y

5 + 10x = -5y

Divide both sides by -5 to isolate y variable.

y = -2x - 1

If the line is parallel, the slope remains the same.

To find the y-intercept, you need to plug the values of x and y into the equation, which is y = 2x + b

5 = -2(-2) + b

5 = 4 + b

1 = b

The equation is -2x + 1

5 0
3 years ago
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