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2 years ago

A) Triple the difference of a number and six is thirty.

Mathematics

1 answer:

Semenov [28]2 years ago

5 0

Answer:

3(6-x)=30

Step-by-step explanation:

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A chandelier was marked up 150% from an original purchase cost of $92. Yesterday, Jayce sold the chandelier, earning a 20% commi

tatuchka [14]

Answer:

92 * 1.5 = 138

138* .2 = $27.60

Step-by-step explanation:

4 0

2 years ago

Which shows the correct way to use the rule ""multiply by the reciprocal"" for the expression below? 7 divided by StartFraction

guajiro [1.7K]

Given:

The expression is $\dfrac{7}{\frac{5}{8}}$ .

To find:

The shows the correct way to use the rule ""multiply by the reciprocal"" for the given expression.

Solution:

According to the rule "multiply by the reciprocal", if a,b,c,d are four number, then

$\dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times \dfrac{d}{c}$

We have,

$\dfrac{7}{\frac{5}{8}}$

It can be written as

$\dfrac{7}{\frac{5}{8}}=\dfrac{\dfrac{7}{1}}{\dfrac{5}{8}}$

Using the rule "multiply by the reciprocal", we get

$\dfrac{\dfrac{7}{1}}{\dfrac{5}{8}}=\dfrac{7}{1}\times \dfrac{8}{5}$

$\dfrac{\dfrac{7}{1}}{\dfrac{5}{8}}=\dfrac{7\times 8}{1\times 5}$

$\dfrac{\dfrac{7}{1}}{\dfrac{5}{8}}=\dfrac{56}{5}$

Therefore, the correct option is D.

5 0

3 years ago

Read 2 more answers

Can someone help will mark brainlist

Marina86 [1]

Answer:

See below

Step-by-step explanation:

the common ratio, r <1 so it CONVERGES (r = 1/2 in this series)

sum = a1 ( 1-r^n) / (1-r) = 1000(1-.5^10)/(1-1/2) = ~1998

for n= 30 this results in ~~2000

As it continues, the terms get smaller and smaller and the SUM converges on 2000.

3 0

1 year ago

Solve for x: 4 over 5 x + 4 over 3 = 2x x = __________________ Write your answer as an improper fraction in simplest form. Use t

MissTica

Answer:

x= 10/9, or 10 over 9

Step-by-step explanation:

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3 years ago

Read 2 more answers

Given sin(−θ)= −1/4 and tanθ= 15√15 .<br><br> What is the value of cosθ ?

dangina [55]

$\sin = \frac{y}{r} \\ \\ \tan = \frac{y}{x} \\ \\ \cos = \frac{x}{r} \\ \\ {x}^{2} + {y}^{2} = {r}^{2}$

$- \sin = \frac{ - 1 \: = \: y}{4 \: = \: r}$
$15 \sqrt{15} = \frac{1}{x} \\ \\ x = .017$
$\cos = \frac{.017}{4} = .0043$

4 0

3 years ago