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Assoli18 [71]
3 years ago
9

What is the solution to x+y=2 and y=x-4?

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
6 0
x+y=2\\
y=x-4\\\\
x+x-4=2\\
2x=6\\
x=3\\\\
y=3-4\\
y=-1
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Susan had 28 ft of ribbon to complete a wreath project. She needs 3 1/4 ft of ribbon for each wreath project. How many wreaths w
olya-2409 [2.1K]

Answer:

She will be able to make 8 wreaths

Step-by-step explanation:

I got my answer by first converting 3 1/4 into 13/4. I then divide 28 by 13/4 which was multiplying 28 by 4/13.

I got 112 when I did 28 × 4

I then divided 112 by 13

and got 8.615.

Since they are asking for how much wreaths she could make, it is going to be 8

3 0
3 years ago
5. Michelle feeds her fish 20 grams of fish food a day. How many kilograms of fish food does Michelle use in 8 weeks? Show your
ludmilkaskok [199]

Answer: (B) 1.12

Step-by-step explanation:

8 weeks = 56 days

56 days x 20 grams = 1120 grams

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4 0
4 years ago
-4/5 to the power of 2 times -3/50
Crazy boy [7]
=(-4/5)^2 * -3/50
square -4/5 first; remember -4/5^2 is the same as -4/5 * -4/5

=(-4/5 * -4/5) * -3/50
multiply -4 numerators; multiply 5 denominators

=(-4 * -4)/(5 * 5) * -3/50

=16/25 * -3/50
multiply numerators 16 & -3; multiply denominators 25 & 50

=(16 * -3)/(25 * 50)
= -48/1250

simplify by 2
= -24/625 (or -0.0384)


ANSWER: -24/625 (or -0.0384)

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
Answer, please. Look at the diagram below. Given ∠1 = 39°, find the measures of the angle 2
RoseWind [281]

Step-by-step explanation:

angle 2 = 180-39= 141°

angle 2 = 141°

8 0
3 years ago
M is the midpoint of rs r has coordinates (-2,10) and m has coordinates (3,5) what are the coordinates of s
Gnom [1K]

Since, the coordinates of the midpoint of line RS are M(3, 5).

The coordinates of endpoint R are (-2,10)

We have to determine the coordinates of endpoint S.

The midpoint of the line segment joining the points (x_1, y_1) and (x_2, y_2) is given by the formula (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}).

Here, The endpoint R is (-2,10) So, x_1 = -2 , y_1=10

Let the endpoint S be (x_2,y_2)

The midpoint coordinate M is (3, 5).

So, 3 = \frac{-2+x_2}{2}

{6} = {-2+x_2}

{x_2}=8

Now, 5 = \frac{10+y_2}{2}

10 = {10+y_2}

0= y_2

So, the other endpoint S is (8,0).

5 0
4 years ago
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