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IRINA_888 [86]
3 years ago
9

Solve 15(s - 3) = 12s - 43

Mathematics
2 answers:
choli [55]3 years ago
4 0

Answer:

s = 2/3

Step-by-step explanation:

15(s - 3) = 12s - 43

15s - 45 = 12s - 43

15s - 12s = -43 + 45

3s = 2

s = 2/3

MA_775_DIABLO [31]3 years ago
4 0

Answer:

s=2/3

Step-by-step explanation:

15(s - 3) = 12s - 43

distribution

15s-45=12s-43

minus 12s from both sides

3s-45=-43

add 45 to both sides

3s=2

divide both sides by 3

s=2/3

substitute to prove right

15(2/3-3)=12(2/3)-43

10-45=8-43

-35=-35

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Maya will deposit $1,650 in an account that earns 5% simple interest every year. Her brother, James, will deposit $1,600 in an a
iogann1982 [59]

Answer:

Step-by-step explanation:

Step one:

given data

Maya

P=$1650

r=5%= 0.05

t= 4 years

The simple interest expression is

A=P(1+rt)

A=1650(1+0.08*4)

A=1650(1+0.32)

A=1650(1.32)

A=1650*1.32

A=$2178

James

P=$1600

r=8%= 0.08

t=4years

The compound interest expression is

A=P(1+r)^t

A=1600(1+0.08)^4

A=1600(1.08)^4

A=1600*1.360

A=$2176

<em>After 4 years Mayas' balance is $2178</em>

<em>After 4 years James' balance is $2176</em>

<em>the difference is =2178-2176=$2</em>

8 0
3 years ago
1 point
Hitman42 [59]

Answer:

20cm

Step-by-step explanation:

Let s = the length of the base

Let 4s = the length of the height

V = BH       Since the base is a square, B = s2

V = s2 H

500 = s2(4s)

125 = s3

s = 5 cm

4s = 20 cm - the height

6 0
3 years ago
⚠️please help done today⚠️
Yuri [45]

Answer:

It would be the first answer choice, 18+54

Step-by-step explanation:

6(3+9

6x3=18

6x9=54

18+54 would be the equation.

Please pick me for brainliest

5 0
3 years ago
Guys please help! In triangle CDE, the measure of angle C is 90 degrees, side CD is 15 and DE is 3 more than CE. Find the length
AURORKA [14]
You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)

your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°

-> insert those values, with c substituted with b+3 to remove c

c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE

DE=CE+3=36+3=39
4 0
4 years ago
A major tire manufacturer wishes to estimate the mean tread life in miles for one of its tires. It wishes to develop a confidenc
iren [92.7K]

Answer:

174 IS IT

Step-by-step explanation:

MARK BRAINLIEST

7 0
4 years ago
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