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soldi70 [24.7K]
3 years ago
13

Simplify -3(2x-7) + 5(4x-8).

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
8 0

Answer:

14x-19

Step-by-step explanation: Now can someone answer my question look at my page

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What is the solution to this inequality x-7<1
Nina [5.8K]
X−7<1

Add 7 to both sides.

x−7+7<1+7

x<8

To plot this on a number line, put a circle around 8 and a line going to the left with an arrow at the end.
8 0
3 years ago
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Please help. Which ones do I check.
lord [1]

Answer:the answer would be 1 4 6

Step-by-step explanation:

6 0
3 years ago
Factorise (x+y)^2-(4-x)^2​
vovikov84 [41]

Answer:

by using the identity a square - b square = (a+b)*(a-b)

a = x+y

b=4-x

= (x+y + 4-x)(x+y - 4-x)

y+4 * x+y -4+x

y+4*2x+y-4

2xy+y square -4y + yx + 4x + 4y - 16 +4x

3xy +y square + 8x -16

Step-by-step explanation:

4 0
3 years ago
3 Markers Cost $5.79.<br> Which Equation Would Help Determine The Cost Of 13 Markers?
Nataly_w [17]
First you would find out how much one cost

you do 5.79 / 3= 1.93

then mutliply= 1.93 x 12= $25.09

$25.09 is your answer
4 0
3 years ago
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Determine the amount of an investment if $1000 is invested at an interest rate of 7.3% compounded quarterly for 30 years.
almond37 [142]
Well, this is rather lengthy so...

First, you'd do...
1000 * 0.073 = $73.

$73 is for one quarter, so...

A quarter of a year is 1/4 of the year, so you'd need to do... $73 * 4.
= $292.

$292 is for one year.

Now do...

$292 * 30
<span>
</span><span>Your Answer:
</span>A. $8760 is invested at an <span>interest rate of 7.3% compounded quarterly for 30 years.</span>
4 0
3 years ago
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