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zepelin [54]
1 year ago
12

Simplify the expressions:

Mathematics
1 answer:
Blizzard [7]1 year ago
7 0

Answer:

a. (7x²+2) + (2x²+3)

= 9x² + 5

b. (5x + 2) + (8x + 3)

= 13x +5

c. (5x)(8x + 3)

= 40x² + 15x

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Jafar will get $12400 more if his salary is increased by 31%. Jafar's salary is 20% less of his colleague Ali's salary. What is
Iteru [2.4K]

Answer:

Ali's salary is $50000.

Step-by-step explanation:

Let Jafar's salary be x.

(31/100)*x = 12400

x = (12400*100)/31

x = 400*100

x = $40000

Let Ali's salary be y.

y-[(20/100)*y] = 40000

y-(y/5) = 40000

(5y-y)/5 = 40000

4y = 200000

y = $50000

7 0
3 years ago
the perimeter of the flag is 2340 ft. what is the flags width and length if the length is 330 ft. greater than the width
GalinKa [24]

Answer:

width=1005 length=1335

Step-by-step explanation:

If the length is 330 ft greater than you would subtract 330 from 2340 and then divide 2010 by 2 to get 1005 then add 330 to 1005 and get 1335

8 0
3 years ago
Pierre cut the length of an 8 cm wide plank into nine pieces and arranged them as shown in the picture. The centrepiece is a squ
kow [346]

Answer: 200cm

Step-by-step explanation:

The center Planck is a square of length 8cm.

The 4 next planks are of 16 cm each

And the next 4 Planks are of 32 cm each.

8 + 4(8×2) + 4(8×4)

8 + 4(16) + 4(32)

8 + 64 + 128

200 cm

Length of the original plank is 200cm

8 0
3 years ago
Shhhh Help me and you get Star ratings
san4es73 [151]

Answer: find the measure of <6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do I put this in slope intercept form y=-x/3 +4
konstantin123 [22]
Slope Intercept form is y=mx+b. They are already in that form. The x is in the numerator because the fractions multiply by x, so...
y=-1/3(x)+1 and y=1/2(x)-4
Hope this helps.
5 0
3 years ago
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