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mylen [45]
3 years ago
12

What is the value of x in the equation 1/2x - 2/3 y = 30, when y = 15

Mathematics
2 answers:
hammer [34]3 years ago
6 0

Answer:

Step-by-step explanation:

1/2x - 2/3 × 15 = 30

1/2x - 10 = 30

1/2x = 30 + 10

1/2x = 40

x = 40 × 2

x = 80

hope this helps

plz mark it bas brainliest!!!!!!!!!

Free_Kalibri [48]3 years ago
4 0
The answer is x =80. I have showed the wirking below. Hope this helped.

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2.7, #41 please. Thanks in advanced.
djverab [1.8K]

sara speed is half of Jeanette's so if jeanette ran 7 miles then her walking speed is 3.5MPH and sense she is 7 miles ahed sara is 10.5 miles behind... 3.5MPH which is jeanette speed is double than sara so 3.5/2 is 1.75MPH... Saras walking speed is 1.75MPH

5 0
2 years ago
A cone is placed inside a cylinder. The cone has half the radius of the cylinder, but the height of each figure is the same. The
Yuliya22 [10]
Here is the answer: 3/4 (pi r^2 h)
5 0
3 years ago
Read 2 more answers
45^2 ÷ 78 = ????????
elena55 [62]
\frac{(45)^2}{78}

To solve the problem find the value of (45)^2 at first

(45)^2=2025\frac{2025}{78}=25\text{ R75}

The answer is 25 with the remainder 75

25\frac{75}{78}

You can simplify the fraction to be 25/26

25\frac{25}{26}

3 0
1 year ago
URGENT!!
Lapatulllka [165]

Answer:

f[g(4)] = 4

Step-by-step explanation:

Given table:

\begin{array}{| c | c | c | c | c | c |}\cline{1-6} x & -6 & -4 & 1 & 3 & 4\\\cline{1-6} f(x) & 4 & -1 & -6 & 1 & 3 \\\cline{1-6} g(x) & 1 & 4 & 3 & -4 & -6 \\\cline{1-6}\end{array}

f[g(4)] is a composite function.

When calculating <u>composite functions</u>, always work from inside the brackets out.

Begin with g(4):  g(4) is the value of function g(x) when x = 4.

From inspection of the given table, g(4) = -6

Therefore, f[g(4)] = f(-6)

f(-6) is the value of function f(x) when x = -6.

From inspection of the given table, f(-6) = 4

Therefore, f[g(4)] = 4

3 0
1 year ago
Read 2 more answers
Giraffes are the tallest land animals. A male giraffe can grow as tall as 6 yards. How tall was the giraffe be in feet?
Ber [7]
There are 3 feet in 1 yard so 6 yards would be 6x3 :

6 x 3 = 18

the giraffe was 18 feet tall


hope this helped

4 0
3 years ago
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