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2 years ago

The sum of a number and -7 is equal to 40. Write the equation

Mathematics

2 answers:

Luba_88 [7]2 years ago

6 0

Answer:

Step-by-step explanation:

-7 + 47=40

kupik [55]2 years ago

5 0

Answer:

-7 + n = 40

Step-by-step explanation:

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What is the value of x????

Arte-miy333 [17]

Answer:

Step-by-step explanation:

${18}^{2} = {x}^{2} + {x}^{2} \\ \frac{18 \times 18}{2} = {x}^{2} \\ x = \sqrt{9 \times 18} \\ x = \sqrt{9 \times 9 \times 2} \\ x = 9 \sqrt{2}$

4 0

2 years ago

Find the value of the expression

KATRIN_1 [288]

Answer:

Step-by-step explanation:

16 - 3

8 0

2 years ago

the figure is made of up of a cone and a cylinder, to the nearest whole number what is the approximate volume of this figure. PL

Deffense [45]

The total volume is the sum of volume of cone and volume of cylinder.

Volume of cylinder = πr²h
π = 3.14
r = 4/2 = 2 mm
h = 2 mm

So, volume of cylinder equals:

$3.14 *(2)^{2}*2 =25.12$ mm³

Volume of cone = $\frac{1}{3} \pi r^{2}h$
π = 3.14
r = 2 mm
h = 3 mm

So, volume of cylinder equals:

$\frac{1}{3}*3.14* (2)^{2}*3=18.84$ mm³

Thus, total volume of the figure = 25.12 + 18.84 = 43.96 mm³

7 0

3 years ago

In 1983, a can of house paint cost $16.35. In 2000, a can of house paint cost $28.94, and in 2005, a can of house paint cost $32

Readme [11.4K]

The Consumer Price Index is calculated through the equation,
CPI = (current period price/base period price) x 100
The base period is 1983. Solving the CPIs for 2000 and 2005
(2000)
CPI = ($28.94/$16.35) x 100 = 177
(2005)
CPI = ($32.54/$16.35) x 100 = 199
The difference between the CPIs of 2005 and 2000 is 199 - 177 = 22.

8 0

2 years ago

Read 2 more answers

Suppose the cost of college tuition is expected to increase 5% every year. How much will the tuition at a comunity college cost

evablogger [386]

Answer:

$7,596.43

Step-by-step explanation:

The cost of the college tuition is increasing 5% compounded annually for 5 years.

∴ A = P(1 + r%)ⁿ

where A = tuition fee after 5 years.

P = current tuition

r = rate of increase

n = period

A = $5,952(1 + 5%)⁵

= $5,952(1 + 0.05)⁵

= $5,952 × 1.05⁵

= $7,596.43

8 0

3 years ago

Read 2 more answers