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Irina-Kira [14]
3 years ago
11

I don’t understand can someone help me

Mathematics
1 answer:
Elden [556K]3 years ago
6 0
You set 49 equal to 8x - 15

So

8x - 15 = 49
+15 + 15

8x = 64

Then divide by 8

X= 8
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How do you increase 429 Grams by 31%
Papessa [141]
If you want to increase something by 31% then...

100%+31%=131% or 1.31

you multiply it by 131% or 1.31. So for 429 grams...

429*1.31=561.99grams

If you increase 429 by 31%, you get 561.99 grams

Answer=561.99 grams
8 0
3 years ago
Find the equation of the line in slope-intercept form.<br><br><br>Slope is −7 and through (−3, 16) 
timama [110]

1) Create was we already know in the equation. 16=-7(-3)+b. (This is using the initial equation of y=mx+b.)

2) Simplify and solve for b: 16=21+b = -5=b

3) Replug your be value into your equation: y=-7x-5.

Answer

y=-7x-5

Words: y equals negative seven x, minus five.

6 0
3 years ago
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borishaifa [10]

Plz mark me as brainliest if this helped :)

6 0
3 years ago
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Isabella can run 4 miles in 56 minutes. How many
Paladinen [302]

Answer:

2miles

Step-by-step explanation:

56/4=14

28/2=14

8 0
3 years ago
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Use OZ with VWXY<br> What is XY ?<br><br> A 30<br> B. 35<br> C. 40<br> D. 50
valkas [14]

Answer:

Step-by-step explanation:

Chords having equal measures are equidistant from the center of the circle.

Since, VW = XY

Therefore, ZP = ZR = 15 units

A perpendicular line drawn from the center of a circle to the chord is the bisector of the chord.

VR = WR = 20 units

By applying Pythagoras theorem in ΔZRV,

ZV² = ZR² + VR²

ZV² = (15)² + (20)²

ZV = √(225 + 400)

ZV = √625

ZV = 25 units

Therefore, measure of radius ZV = 25 units.

VW = XY [Given]

Therefore, XY = 2(20)

                        = 40 units

4 0
3 years ago
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