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enot [183]
2 years ago
8

2.3.PS-17

Mathematics
1 answer:
sukhopar [10]2 years ago
3 0

Answer:

Julio's number is 40.

Step-by-step explanation:

Solve:

(x - 19) * (-7) = -147

-7x + 133 = -147

-7x = -280

x = 40

Check:

40 - 19 = 21

21 * (-7) = -147

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Write two different pairs of decimals whose sums are 8.69. One pair should involve regrouping
chubhunter [2.5K]
One pair is 4.345+4.345 (which is the pair that does not involve grouping)
7 0
3 years ago
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Factors of 9.52? Please help. Google won’t tell
Elina [12.6K]

Answer:

9.52 x 1

4.26 x 2

4 x 2.38

Hope that helps

4 0
3 years ago
Find the missing angle.<br> Enter the number that belongs in the green box.<br> Enter
Ivenika [448]

Answer:

35 degrees

Step-by-step explanation:

The sum of all angles in a triangle equals to 180

To find angle z, just subtract 55 and 90 from 180

180-55-90= 35

Angle z = 35 degrees

Hope this helps

8 0
2 years ago
Cynthia Besch wants to buy a rug for a room that is 1919 ft wide and 2727 ft long. She wants to leave a uniform strip of floor a
yulyashka [42]

Answer:

The dimension of the rug would be 17 ft × 9 ft.

Step-by-step explanation:

Given

length of the room = 27 ft.

width of the room = 19 ft.

suppose, she leaves a uniform strip of x ft. around the rug.

So,

The length of rug = (27-2x)ft.

Width of rug= (19-2x)ft.

∴ Area of the rug= length×width

                            =  (27-2x)(19-2x)

                            =  513-54x-38x+4x^2

                            =   513-92x+4x^2

According to the question,

513-92x+4x^2=153

513-92x+4x^2-153=0        ( subtract 153 both sides)

4x^2-92x+360=0

4(x^2-23x+90)=0

x^2-23x+90=0

x^2-(18+5)x+90=0            ( Middle term splitting)

x^2-18x-5x+90=0

x(x-18)-5(x-18)=0

(x-5)(x-18)=0

x-5=0 or x-18=0             ( zero product property)

x=5 or x=18

if x=18, dimension would be negative  ( Not possible)

Thus, x= 5

Hence,

length of rug= 27-10=17 ft.

width of rug= 19-10=9 ft.

8 0
3 years ago
HELP
fgiga [73]

Answer:

E

Step-by-step explanation:

5 0
2 years ago
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