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BabaBlast [244]
3 years ago
10

Write the following as an algebraic expression. Simplify if possible. Subtract 3y-5 from y-7

Mathematics
1 answer:
yuradex [85]3 years ago
6 0

3y-5-(y-7)=

(3y-y)+(7-5)=2Y+2

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50.264 grams -> 50.2

Step-by-step explanation:

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3 years ago
At a point on the ground 35 ft from the base of a tree, the distance to the top of the tree is 1 ft more than 3 times the height
jolli1 [7]

Answer:

Step-by-step explanation:

This is a question that uses the Pythagorean Theorem.

a = 35 feet

b = x            which is the height of the tree.

c = 3*x + 1   so we are trying to find x.  Substitute into a b and c

a^2 + b^2 = c^2

35^2 + x^2 = (3x + 1)^2        

35^2 + x^2 = 9x^2 + 6x + 1     Subtract x^2 from both sides.

35^2 = 8x^2 + 6x + 1               Subtract 35^2 from both sides.

0 = 8x^2 + 6x + 1 - 35^2

0 = 8x^2 + 6x - 1224

Does this factor?

(x + 12.75)(x - 12)

x - 12 = 0 is the only value that works.

x = 12

The tree is 12 feet high.

Note: I used the quadratic formula to solve this.

6 0
4 years ago
Read 2 more answers
the number of people and dogs taking an obedience class increased from 1400 students to 1600 students. choose the percent increa
pogonyaev

Answer:

There're three answers.

14.285714285714285 - EXACT

14.28 - SIMPLIFIED

14 - ROUNDED/ESTIMATED

Step-by-step explanation:

Brainliest answer, please?

(You, the questioner, have to give it. It's not something brainly.com gives.)

1600 - 1400/1400 * 100 - EQUATION

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Step-by-step explanation:B) x es un número impar

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3 years ago
KAitlin is on a long car trip.Every time she’s stops to buy gas,she loses 15 minutes of travel time.If she has to stop 5 times ,
OLga [1]

Answer:

Kaitlin will be 1 hour and 15 minutes late (75 minutes)

15 · 5 = <u>75</u>

6 0
4 years ago
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