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svp [43]
3 years ago
10

Kathi and Robert

Mathematics
1 answer:
Ad libitum [116K]3 years ago
4 0

10.5x + 3y = 811.5

x + y = 97

y = 97 - x

3y = 291 - 3x

7.5x + 291 = 811.5

7.5x = 811.5 - 291

x = 520.5 / 7.5

x = 69.4

69 were sold at the original price

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Help plzzz!! Marking most Brainly;)
kolezko [41]

Answer:

D it

Step-by-step explanation:

We have two equations, A quadratic and a linear equation.

The domain of a linear equation and quadratic equation is all real numbers but since it dealing with time we must make sure the roots or x-intercepts is positive.

Looking at the quadratic equation, we can use the discramnt formula to see if all roots are positve.

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3 0
3 years ago
Clare has 5 yards of ribbon. It takes 1/2 yard to make a bow. How many bows can Clare make with the ribbon? Write a multiplicati
KonstantinChe [14]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
Can some one please help me <br> will give 94 points for it
NNADVOKAT [17]
You can solve this by using "similar triangles".

In triangle ABC, we are looking for side AC which is x. Side AC is similar to side DF in triangle EDF.

You can solve for side x by picking two sides in triangle ABC and their corresponding sides in triangle EDF. This is what I mean:
\frac{AC}{BC} =  \frac{DF}{EF}
Substitute for the values of AC, BC, DF and EF:
\frac{x}{4}  =  \frac{11}{8}  \\  \\ 8x = 4 \times 11 \\  \\ x =  \frac{44}{8}
x = 5.5 \: units
To solve for y, do the same thing. Pick two sides on triangle ABC and their corresponding sides in triangle DEF.
\frac{AB}{BC}  =  \frac{DE}{EF}
Substitute for the values and solve:
\frac{3}{4}  =  \frac{y}{8}
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We have the value x to be 5.5 units and y to be 6 units.

7 0
3 years ago
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Answer:

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From the point of view of the context, a CD account grows in value over time so with a deposit of $400 the value will never drop to $399.

4 0
2 years ago
What is 2+2 equal?<br><br> this one is so hard, like how do people get this:)
Fittoniya [83]

Answer:

haha 4

Step-by-step explanation:

2 + 2 = 4

voila good luck:)

7 0
3 years ago
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