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Elis [28]
3 years ago
13

Solve the system by substitution or elimination

Mathematics
1 answer:
OleMash [197]3 years ago
4 0
X - y = 5,
x = 5 + y
substitute (x = 5 + y) into the first equation,
5 + y + 2y = -1
3y = -6
y = -2,
substitute y = -2 into (x - y = 5),
x + 2 = 5
x = 3

Hence, x = 3, y = -2
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10:30 A.M

Step-by-step explanation:

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the probability of a number cube landing on 4 is 1/6 if a number cube is tossed 12 times how many times can it be expected to la
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Jessica picked oranges for 2 days during school vacation. She was paid $0.45 per basket for the first 100 baskets picked each da
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Answer:

$91.75

Step-by-step explanation:

Jessica is paid:

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1st day:

Jessica picked 65 baskets of oranges (less than 100)

Jessica is paid 65\cdot \$0.45=\$29.25

2nd day:

Jessica picked 135 baskets of oranges (35 more than 100)

Jessica is paid 100\cdot \$0.45+35\cdot \$0.50=\$45+\$17.50=\$62.50

Altogether Jessica is paid

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4 0
3 years ago
A water well rig has dug to a height of -60 feet after one full day of continuous use. if the rig has been running and is curren
Romashka [77]

Given :

A water well rig has dug to a height , H = 60 feet after one full day of continuous use .

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If the height is currently 143.6 feet how time it been running .

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It is given that height after 24 hours of use is 60 feet .

So , height loose in 1 hours is :

h=\dfrac{60}{24}\ feet\\\\h=2.5 \ feet

Now , time taken to cover a height of 143.6 feet is :

t = \dfrac{143.6}{2.5}\ hours\\\\t=57.44\ hours

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3 years ago
Will give 100 pts and brainliest
prohojiy [21]

Answer:

y = \sqrt{19^2 + 8.2^2}

Step-by-step explanation:

to get the hypotenuse:

use the Pythagorean theorem:

a² + b² = c²

where a = 19,  b = 8.2  c = y

plugin values:

19² + 8.2² = y²

y = \sqrt{19^2 + 8.2^2}

8 0
3 years ago
Read 2 more answers
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