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3 years ago

Solve the system below using elimination. x+y=25 5x+y=9

Mathematics

2 answers:

LuckyWell [14K]3 years ago

6 0

Answer:

Step-by-step explanation:

Sati [7]3 years ago

5 0

(X, y) = (-4, 29) Sorry if it wrong

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Last Saturday, Kevin walked his dog 1 2/7 miles. Sam walked his dog 7 times as far. How many miles total did both guys walk thei

Annette [7]

Answer:

$10\dfrac{2}{7}\ miles$

Step-by-step explanation:

If Kevin walked his dog 1 2/7 miles and Sam walked his dog 7 times as far, then Sam walked his dog

$1\dfrac{2}{7}\cdot 7=\dfrac{1\cdot 7+2}{7}\cdot 7=\dfrac{9}{7}\cdot \dfrac{7}{1}=9\ miles.$

Together they walked

$1\dfrac{2}{7}+9=10\dfrac{2}{7}\ miles.$

7 0

4 years ago

Karen operates a hot dog stand. On Wednesday she used 9 1/3 bags of hot

trapecia [35]

<h2>Explanation:</h2>

We know that Karen operates a hot dog stand. So we have:

On Wednesday:

$\text{She used} \ 9 \frac{1}{3} \ \text{bags of hot dog buns.}$

On Thursday:

$\text{She used} \ \frac{1}{3} \ \text{as many hot dog buns as on Wednesday}$

Therefore, if x is the amount of hot dog buns she used on Thursday, then:

$x=\frac{1}{3}(9\frac{1}{3}) \\ \\ x=\frac{1}{3}\times 9+\frac{1}{3}\times \frac{1}{3} \\ \\ x=\frac{28}{9}$

Therefore, on Thursday she used 28/9 bags of hot dog buns.

6 0

3 years ago

NEED HELP ASAP PLEASE AND THANK YOU:

Ierofanga [76]

Answer:

D. Point Y should be 8 inches from point A

Step-by-step explanation:

6 0

3 years ago

The area of a soccer field at 7700 yd.². The width of the field is 70 yards. What is the perimeter of the field?

mario62 [17]

Since you know the area and the width, you can divide the area by the width to find the length. This gives you a length of 110 yards. To find the perimeter of the soccer field, you would add all the side lengths together. Since the width is 70, you would add 70 + 70, along with the length, 110 + 110. This gives you a perimeter of 360.

3 0

3 years ago

29 mm 가 120 mm D What is the perimeter? millimeters

Stella [2.4K]

Pythagoras theorem : a^2 + b^2 = c^2

20^2 + b^2 = 29^2

400 + b^2 = 841

841 - 400 = 441

Square root 441 = 21

PERIMETER :

21+29+20 = 70

The answer is 70

7 0

3 years ago