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svetoff [14.1K]
2 years ago
6

Pls help need it ASAP

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

Answer:

3x-2y=17........(1)

x=4y-1

substituting value of x in equation 1

3(4y-1)-2y=17

12y-3-2y=17

10y=17+3

y=20/10=2

again

substituting value of y in equation 1

3x-2×2=17

3x=17+4

x=21/3=7

:.x=7,y=2

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PLSSS SOMEONE HELP FAST PLS AND TY :) i only need #7
ankoles [38]
<h3>Answers:</h3>
  • a) HR = 24
  • b) AT = 32
  • c) MR = 29
  • d) R is the midpoint of <u>  MH  </u>  and <u>  AT  </u>

==========================================================

Explanation:

a)

MR = 24 is given. Note the single tickmark on this segment. The other segment HR has the same tickmark, so it is the same length as MR.

HR = MR = 24

-----------------

b)

The double tickmarks tell us TR and RA are the same length. They combine to form segment AT. So this means segment AT is cut in half to get TR and RA.

TR = (1/2)*(AT)

2*TR = AT.... multiply both sides by 2

AT = 2*TR

AT = 2*16

AT = 32

-----------------

c)

MH is cut in half at point R for similar reasoning as part b)

Put another way, MH is twice as long as MR.

MH = 2*MR

58 = 2*MR

2*MR = 58

MR = 58/2

MR = 29

-------------------

d)

R is the midpoint of segment MH because R cuts MH in half. Point R bisects MH.

R is also the midpoint of AT for similar reasoning. It's all based on the tickmarks telling us which segments are congruent to one another.

5 0
2 years ago
What is the value of 7(10 – 16) + 8 ÷ 2?
Artyom0805 [142]

Answer:

−38

First do 10-16 which is -6

(7)(−6)+8/2

=−42+8/2

8/2 equals 4 so add -42 to 4

=−42+4

=−38

8 0
2 years ago
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tatiyna

Answer:

=  > in \: the \: bigger \: triangle \\ height = 14 \: ft \\ base = 22.5 \: ft \\  =  > in \: smaller \: triangle \\ height = x \: ft \\ base = 9 \: ft \\ using \: ratios \\  \frac{bigger \: height}{smaller \: height}  =  \frac{bigger \: base}{smaller \: base}  \\  \frac{14}{x}  =  \frac{22.5}{9}  \\  \frac{14}{x}  = 2.5 \\ x =  \frac{14}{2.5}  \\ x = 5.6 \: ft

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2 years ago
What is 3 to the power of 3 over 2 equal to?
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27/2. 3x3x3 is 27.                                   .

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