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3 years ago

5% of what number is 85?

Mathematics

1 answer:

Semmy [17]3 years ago

8 0

5% = 0.5

0.5n = 85

Divide by 0.5

0.5n = 85
/0.5 /0.5

n = 170.

The number is 170.

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Everything else right but just can’t figure that fraction out.

krok68 [10]

Answer: 1/5

Step-by-step explanation: Since there are 5 blue/green marbles in the bag of 20 it would be 5/20 or 1/5.

6 0

2 years ago

Which expression fits this description?

madam [21]

Answer:

The expression that fits the description is ;

(8a + b)/4

Step-by-step explanation:

Here, we want to find the expression that fits the given description;

We are told that the expression is a sum of two terms

The first term is 2 * a = 2a

The second term is the quotient ( result of division) of b and 4 = b/4

So the term we are looking for is;

2a + b/4 = (8a + b)/4

6 0

2 years ago

Read 2 more answers

Solve each equation for y. Then find the value of y for each value of x. y+3x=8;x=-2,0,2

damaskus [11]

Y=-3x+8
when x=-2:
y=-3(-2)+8
y=6+8
y=14
when x=0
y=-3(0)+8
y=0+8
y=8
when x=2
y=-3(2)+8
y=-6+8
y=2

6 0

2 years ago

Solve for m<br> b= 1/2mv

saveliy_v [14]

Answer: m = 2b/v

Step-by-step explanation:

7 0

2 years ago

A collection of five coins has a value of $1 and consists of dimes and

DENIUS [597]

For this case we propose a system of equations. We have to:

x: Let the variable that represents the number of dimes

y: Let the variable that represents the number of quaters

We know that:

One dime equals 10 cents, $0.10

A quater equals 0.25 cents, $0.25

According to the statement we have:

$x + y = 5\\0.10x + 0.25y = 1$

We multiply the first equation by -0.10:

$-0.10x-0.10y = -0.5$

We have the following equivalent system:

$-0.10x-0.10y = -0.5\\0.10x + 0.25y = 1$

We add the equations:

$-0.10x + 0.10x-010y + 0.25y = -0.5 + 1\\0.15y = 0.5\\y = \frac {0.5}{0.15}\\y = 3.33$

Approximately 3 quater coins

$x = 5-y = 5-3 = 2$

And two dimes

Answer:

3 quater

2 dimes

4 0

2 years ago