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3 years ago

Hey I’m 11 not 80 it only says it on my profile for safety

Mathematics

2 answers:

olga2289 [7]3 years ago

7 0

Answer:

56=67x

1. Divide both sides by 67

2. 56 divided by 67= 0.84

3. That is your answer

salantis [7]3 years ago

5 0

Answer:

56=67x

Hope this Helps! :)

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Nuclear Physics Problems<br>Help me for 50 points

vampirchik [111]

Suggestion: tell me that you want answer of all or anyone.

6 0

2 years ago

18,000 amounts to 21,600 in 4 years at simple interest. Find the sum of

AnnyKZ [126]

Answer:

$\$20,400$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

step 1

Find the rate of interest

in this problem we have

$t=4\ years\\ P=\$18,000\\ A=\$21,600\\r=?$

substitute in the formula above and solve for r

$\$21,600=\$18,000(1+4r)$

$1.2=(1+4r)$

$4r=1.2-1$

$r=0.2/4=0.05$

The rate of interest is $5\%$

step 2

Find the sum of money that will amount to 25,500 in 5 years, at the same rate of interest

in this part we have

$t=5\ years\\ P=?\\ A=\$25,500\\r=0.05$

substitute in the formula above and solve for P

$\$25,500=P(1+0.05*5)$

$P=\$25,500/(1.25)=\$20,400$

3 0

3 years ago

Write the equation of the line, in slope-intercept form, that contains the points (-1,-2) and (1,2)

Bad White [126]

Slope intercept is y=mx+b
m=slope
slope if found by
m=(y1-y2)/(x1-x2)
(x,y)
(-1,-2) and
(1,2)
x1=-1
y1=-2
x2=1
y2=2

m=(-1-1)/(-2-2)
m=-2/-4
m=1/2

y=1/2x+b
solve fo by subsituting one x value
(1,2)
x=1
y=2
2=1/2(1)+b
2=1/2+b
subtract 1/2
3/2=b

equation is
y=1/2x+3/2

4 0

3 years ago

What is 15% of eight?

Alla [95]

1.2 8 x 15 percent = 8 x .15 = 1.2

8 0

3 years ago

The pyramid shown has a square base that is 12 inches on each side. It has a surface area of 336 square inches. What is the slan

blagie [28]

Let b and h represent the length of the side of the base and the slant height, respectively. Then the total surface area is
A = b² + 4*(1/2)bh
A = b² +2bh

Substituting the given numbers, you have
336 = 12² +2·12·h
192 = 24h . . . . . . . . . subtract 12² = 144
8 = h . . . . . . . . . . . . . divide by 24

The slant height is 8 inches.

7 0

3 years ago

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