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4 years ago

Please answer the ALL of the following questions, I will give you brainliest and thanks! I want to see if you guys know it.

Mathematics

1 answer:

mario62 [17]4 years ago

3 0

1) 200 candies

15% of my candies were strawberry candies. I had 30 strawberry candies. How many candies did i have?

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Let "x" be the number of candies.

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Equation:

0.15x = 30

x = 30/0.15

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Multiply numerator and denominator by 100 to get:

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x = 3000/15

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x = 200

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2) 146 STUDENTS

27%*T=54, So T=200.

So 200-54=146 Students passed the test.

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3) She got a 20% discount (or 80% discount). (Work shown for 80%).

First you have to find out how much Mandy paid. So from 15000 you will subtract 3000. 15000-3000=12000.

Next you need to set up your equation. . You then have to cross multiply. So 100 times 12000, 100*12000=1200000. And 15000 times x is 15000x. Finally you divide both sides by 15000. And 1200000 divided by 15000 is 80. X=80

Step-by-step explanation:

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A full-time employee who works 40 hours week earns 19.50 per hour. Estimate that person’s annual income

Yuliya22 [10]

Answer:

780

Step-by-step explanation:

40 times 19.50 is 780.

8 0

3 years ago

The simple interest I ( in dollars) for a savings account is jointly proportional to the product of the time t (in years) and th

In-s [12.5K]

Answer:

Part a) The constant of variation is $r=0.0567$ or $r=5.67\%$

Part b) $I=\$662.03$

Step-by-step explanation:

Part a) Find the constant of variation.

we know that

The simple interest formula is equal to

$I=P(rt)$

In this linear direct variation the constant r represent the constant of proportionality

where

I is the Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=5/12\ years\\ P=\$3,892\\ I=\$92\\r=?$

substitute the values and solve for r

$92=3,892(r(5/12))$

$r=(92*12)/(3,892*5)$

$r=0.0567$

Part b) what will the interest be after 3 years

in this part we have

$t=3\ years\\ P=\$3,892\\ I=?\\r=0.0567$

substitute the values

$I=3,892(0.0567*3)=\$662.03$

5 0

3 years ago

The domain of a function is the domain of its inverse.<br> A. True<br> B. False

notsponge [240]

the domain of a function is the domain of its inverse -- This is False.

6 0

3 years ago

Read 2 more answers

Which equation shows an example of the associative property of addition?

Nat2105 [25]

The associative property states that we can regroup the terms of an expression and obtain the same result.

We have then:

$a + (b + c) = (a + b) + c$

The expression that complies with this property is given by:

$(-4 + i) + 4i = -4 + (i + 4i)$

Answer:

An equation that shows an example of the associative property of addition is:

a. (- 4 + i) + 4i = -4 + (i + 4i)

6 0

3 years ago

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Please help!<br> "Congruence and Constructions".

marin [14]

Answer:

MNK = TRP

MN is congruent to TR.

X = 6.3

Step-by-step explanation:

MNK is congruent to TRP because the two triangles are congruent, which is a given statement. This also means that all side and angle measures will be congruent. Because of this, it can be inferred that MN is congruent to TR and they have equal side length measures. This means that TR measures 20. This means that 3X - 1 = 20. By solving we can get 6.33.

7 0

3 years ago