One and a half x + 3/4 x equals 5/8

Answers

Answer 1

Answer: 1 and 1/2x+3/4x=5/8
combine x's
1 and 1/2x=4/4x+2/4x=6/4x
6/4x+3/4x=5/8=9/4x
9/4x=5/8
multiply both sides by 8
18x=5
x=5/18

x=5/18 or aprox 0.277777777777

Answer 2

Answer: extend 4x on the RHS into a fraction with /4

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What is the area of a circle with a diameter of 10ft? Use 3.14 for pi.

Can you help with these two questions I'm having hard times in math

Answers

Sure, here are what I got for those 2 questions:

16.
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They make 33.3333% of free throws, so if they attempted 12, they would make 4 because 1/3 x 12 = 4.

y varies directly as x and inversely as the square of z. y=48when x=100 and z= 5. Find y when x=3 and z=12

Answers

Answer:

y = 0.25

Step-by-step explanation:

Given y varies directly as x and inversely as the square of z then the equation relating them is

y = $(kx)/(z^2)$ ← k is the constant of variation

To find k use the condition y = 48 when x = 100 and z = 5

k = $(yz^2)/(x)$ = $(48(25))/(100)$ = 12

y = $(12x)/(z^2)$ ← equation of variation

When x = 3 and z = 12, then

y = $(12(3))/(144)$ = 0.25

48 is 60% of what number? A. 80 B. 28.8 C. 8 D. 0.8

Answers

48 is 60% of 80

Convert your percentage into a decimal:
$(60)/(100) =0.6$

Divide 48 by the decimal:
$48 / 0.6 = 80$

The expression 5,430,900 is written in standard notation. True or False?

I believe its true but I don't really know..

Answers

its false, standard notation would have an exponent.

Answer:

True

hope this helps

A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many pennies are in the box

Answers

We could say that the number of pennies is 2x, nickels are 3x, and dimes are 4x. Adding all of them together, we get 2x+3x+4x=9x. We also know that 9x=1620 because the total amount of coins is 1620. Dividing by 9 on both sides we get x=180.
Pennies equal 2x= 2*180=360

Put this in order please :) (Picture with it)a.0.70
b.0.02
c.1.16
d.1.50
e.0.54
f.1.75

Answers

Answer:

a) .02

d) .54

e) .70

g) 1.16

j) 1.50

k) 1.75

Step-by-step explanation:

Hope this helps ya!

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