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OLEGan [10]
1 year ago
11

Which statement is true?

Mathematics
1 answer:
o-na [289]1 year ago
4 0
I believe the answer should be D, since equilateral triangles means that all the sides are the same length, and congruent means two figures having the same length, and the same shape.
Hope this helps!
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Boris's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Boris
KatRina [158]
X=pounds of Type A coffee
y=pounds of Type B coffee

QUANTITY EQUATION:
x+y=178

COST EQUATION:
$5.45x + $4.20y=$870.10

STEP 1:
Solve for one variable in equation one.  Then substitute it in equation two.

x+y=178
subtract y from both sides of the equation
x=178-y


STEP 2:
substitute x=178-y in equation two

5.45x + 4.20y=870.10
5.45(178-y) + 4.20y=870.10
multiply 5.45 by everything in parentheses

(5.45*178)+(5.45*-y)+4.20y=870.10
970.10-5.45y+4.20y=870.10
combine like terms

970.10-1.25y=870.10
subtract 970.10 from both sides

-1.25y=-100
divide both sides by -1.25

y=80 pounds of type B coffee


STEP 3:
Substitute y=80 in either equation to solve for x

x+y=178
x+80=178
subtract 80 from both sides
x=98 pounds of type A coffee


ANSWER:
x=98 pounds of type A coffee
y= 80 pounds of type B coffee


CHECK:
Substitute answers for x & y into either equation to be sure it checks.

5.45x+4.20y=870.10
5.45(98)+4.20(80)=870.10
534.10+336=870.10
870.10=870.10

Hope this helps!  :)

4 0
3 years ago
12 x 1/2<br> How do I solve that, and what’s the answer?
LekaFEV [45]

Answer:

The answer is 6

Step-by-step explanation:

12 divided by 2 is 6. If you have a fraction of 1/2, then its half of it. 6 is half of 12. :)

5 0
3 years ago
Read 2 more answers
(0.05)(-0.25) = -1.25 <br> True False
motikmotik
See attached photo



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5 0
3 years ago
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When I want to find the maximum or minimum height of an object I should​
Vedmedyk [2.9K]

Answer:

Find the y-coordinate of the vertex

Step-by-step explanation:

4 0
2 years ago
Write three functions. In the first function, y should vary directly with x. In the second function, y should vary inversely wit
motikmotik
Asked and answered elsewhere.
brainly.com/question/8880788
7 0
2 years ago
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