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3 years ago

X + y = 8 and x - y = -2 Substitution or elimination need help doing problem

Mathematics

1 answer:

sergiy2304 [10]3 years ago

6 0

X is equal to 5 and y is equal to 3

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A 52 foot ladder is set against the side of a house so that it reaches up 48 feet. If Jace

Leni [432]

Answer:

44.4

Step-by-step explanation:

yes

5 0

3 years ago

A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number

mixas84 [53]

A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number can be repeated. You can choose from among four letters, A, B, C, and D, and two numbers, 5 and 6.

The size of the sample space is: (8, 16, 20, 24)

If a code is chosen at random, the probability that it has a letter that immediately follows an odd number is: (1/8, 1/6, 1/3, 2/5, 2/3)

If a code is chosen at random, the probability that D is in the code but is not in the first position is: (1/8, 1/6, 1/3, 2/5, 2/3)

5 0

3 years ago

Read 2 more answers

1.2 × 10e4− 1.5 × 10e3− 2.2 × 10e2 in scientific notation

madreJ [45]

Answer: 4.5×10^9

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

. The sign of the exponent will depend on the direction you are moving the decimal.

4.5

×10

3 0

4 years ago

Read 2 more answers

What is the solution?

mrs_skeptik [129]

Answer:

(2,3)

Step-by-step explanation:

it's the point of intersection

hope this helps, pls mark brainliest :D

7 0

3 years ago

Read 2 more answers

A car travels 30 1/5 miles in 2/3 of an hour.What is the average speed in miles per hour of the car

slega [8]

The speed of car is 45.3 miles per hour.

Further explanation:

Speed is the rate at which an object changes position with respect to time.

Given

$Distance = 30\frac{1}{5}\ miles\\Time=\frac{2}{3}$

The formula for calculating speed is:

$Speed = \frac{distance}{time}\\= \frac{30\frac{1}{5}}{\frac{2}{3}} \\=\frac{\frac{151}{5}}{\frac{2}{3}} \\=\frac{151}{5}*\frac{3}{2}\\=\frac{453}{10}\\=45.3\ miles\ per\ hour$

The speed of car is 45.3 miles per hour.

Keywords: Speed, distance

Learn more about speed at:

#LearnwithBrainly

8 0

3 years ago