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2 years ago

(13x-19y)+(48x+43y) PLZ ANSWER

Mathematics

2 answers:

pickupchik [31]2 years ago

8 0

Answer:

61x+24y

Step-by-step explanation:

(13x-19y)+(48x+43y)

Combine like terms

13x +48x -19y+43y

61x+24y

suter [353]2 years ago

6 0

Answer:

Combing like terms we get 13x + 48x = 61x and -19y + 43y = 24y so the answer is 61x + 24y.

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A new motorboat costs $6000. The value of the boat decreases by 15% each year. What is the value of the boat after 3 years?

Elodia [21]

Answer:

The value of the boat after 3 years is $\$3,684.75$

Step-by-step explanation:

we know that

The formula to calculate the depreciated value is equal to

$V=P(1-r)^{x}$

where

V is the depreciated value

P is the original value

r is the rate of depreciation in decimal

x is Number of Time Periods

in this problem we have

$P=\$6,000\\r=15\%=15/100=0.15\\x=3\ years$

substitute

$V=6,000(1-0.15)^{3}$

$V=6,000(0.85)^{3}$

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2 years ago

Simply -3 3/4 divided by 2 1/2

Dima020 [189]

Answer:

$=-1\frac{1}{2}$

Step-by-step explanation:

Given the following question:

$-3\frac{3}{4} \div2\frac{1}{2}$

In order to find the answer, we first convert the mixed numbers into improper fractions. Then we use KCF (Keep, Change, Flip) and solve.

$-3\frac{3}{4} \div2\frac{1}{2}$
$-3\frac{3}{4} =12+3=-\frac{15}{4}$
$2\frac{1}{2}=2\times2=4+1=\frac{5}{2}$
$-\frac{15}{4} \div\frac{5}{2}$
$-\frac{15}{4} \times\frac{2}{5}$
$15\times2=30$
$4\times5=20$
$=-\frac{30}{20}$
$-\frac{30}{20} \div10=-\frac{3}{2}$
$-\frac{3}{2}=3\div2=-1\frac{1}{2}$
$=-1\frac{1}{2}$

Hope this helps.

4 0

1 year ago

A.<br> f (x) = - 3x; Find f(-8)

Andrew [12]

Answer:

f(-8)=24

Step-by-step explanation:

f(x)=-3x

1. insert -8 for x

f(-8)=-3(-8)

2. multiply

f(-8)=24

3 0

2 years ago

Read 2 more answers

What percent of the current number of states had joined<br> the United States by the year 1863?

sukhopar [10]

we know the 100% is 50 today, by 1863 there were 35, so what is 35 in percentage off 50?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 50&100\\ 35&x \end{array}\implies \cfrac{50}{35}=\cfrac{100}{x}\implies \cfrac{10}{7}=\cfrac{100}{x} \\\\\\ 10x=700\implies x=\cfrac{700}{10}\implies x=70$

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1 year ago

2. What is the circumference of a circle<br> with a radius of 22 centimeters? Use<br> 3.14 for at

erma4kov [3.2K]

Answer:

138.16 feet

Step-by-step explanation:

$C = 2\pi \: r \\ = 2 \times 3.14 \times 22 \\ = 44 \times 3.14 \\ = 138.16 \: feet$

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2 years ago