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inessss [21]
3 years ago
8

19= 7z -2z -------------

Mathematics
2 answers:
Nata [24]3 years ago
8 0

Answer:

z = 3.8

Step-by-step explanation:

19 = 7z - 2z

19 = 5z

19/5 = z

3.8 = z

MrRissso [65]3 years ago
3 0

Answer:

19 = 7z - 2z

19 = 5z

z = 19/5

Hope this helps!

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The students in Mr. Collin’s class used a surveyor’s measuring device to find the angle from their location to the top of a buil
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Answer:

Option A -The height of the building is 105 ft

Step-by-step explanation:

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TOA = OPPOSITE / ADJACENT

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Height = tan 59° X  (63)

Height = 1.6643 X 63

Height = 104.85

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4 0
3 years ago
a scientist has two solutions which she has labeled solutions A and solution B each contains salt. she knows that solution A is
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Answer

Let x = the number of ounces of Solution A

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60x + 15300 - 85x = 13500

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6 0
3 years ago
What is the volume of this cube?
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3 0
3 years ago
Read 2 more answers
Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq
Arte-miy333 [17]

Answer:

The perimeter of rectangle is 18\ cm

Step-by-step explanation:

Let

x------> the length of rectangle

y----> the width of rectangle

we know that

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x=y+5 -----> equation B

substitute equation B in equation A

120=y(y+5)+2(y+5)^{2} +2y^{2}\\120=y^{2}+5y+2(y^{2}+10y+25)+2y^{2}\\120=y^{2}+5y+2y^{2}+20y+50+2y^{2}\\5y^{2}+25y+50-120=0\\5y^{2}+25y-70=0

using a graphing calculator to resolve the quadratic equation

the solution is

y=2\ cm

Find the value of x

x=2+5=7\ cm

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3 0
4 years ago
Solve ? I need your helpppppp
sasho [114]

Answer:

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4 0
3 years ago
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