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RSB [31]
3 years ago
7

Sara went on a diet and reduced her daily calories from 2,000 to 1,400. By what percent did she reduce her daily calories?

Mathematics
1 answer:
OLga [1]3 years ago
5 0

Answer: 30%

Step-by-step explanation:

Difference is (2000 - 1400) = 600

%age reduction 600/2000 x 100 = 30%

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Which line is perpendicular to the line whose equation is 5y + 6 = -3x?
Lynna [10]

Answer: B

Step by Step

5y + 6 = -3X

5y = -3X - 6

Y = -3/5X -6/5

Perpedicular is the flip of your slope so -3/5 becomes 5/3X

6 0
3 years ago
–4x-2y=-2<br> x-2y=9<br> what do you get if you subtract the second from the first
kirill115 [55]

Answer:

-4×-2y=2

-4×+8y=-8

6y=6

y=1 then you the value of y and to put in any one equestion

7 0
2 years ago
Is AB parallel to CD? Explain.
professor190 [17]

Answer:

yes,because parallel line are lines with point which do not meet and the two lines in the plane will not meet nor intersect .

Step-by-step explanation:

obviously a parallel line

8 0
2 years ago
Solve the linear equation below for x. *<br> 3x + 4 = 8x – 9<br> A. 2.6 B. 1 C. 1.09 D. 2
Juli2301 [7.4K]
This answer is A, first you subtract 3x from both sides simplify 8x-9-3x to 5x-9, add 9 to both sides, simplify 4+9 to 13, divided both sides by 5 and you’ll get 2.6
6 0
3 years ago
Did the first one need help with the last few
Otrada [13]

Hi there! :)

a) (ii) The two angles are vertical angles, so they are congruent.

b)(i) y = 71°

  (ii) The two angles are alternate interior angles, so they are congruent.

c) z = 44°

(ii) m∠x = 65° because the two angles are vertical angles, so they are congruent.

b) (i)

∠y is an alternate interior angle, therefore:

m∠y = 71°

c) Use the sum of interior angles of a triangle to determine the measure of angle z:

180 = 65 + 71 + z

180 = 136 + z

180 - 136 = z

z = 44°.

7 0
3 years ago
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