Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Twenty-seven minus 3/2 of a number (x) is not more than 36. What is the number?

saw5 [17]

Answer:

Step-by-step explanation:

$27 - 1.5x \leq 36\\ 54 - 3x \leq 72\\54 - 72 \leq 3x\\-18 \leq 3x\\-6 \leq x\\x\geq -6$

Hope this helps

7 0

3 years ago

Brittany's mom gave her $15.00 to buy school supplies. Brittany needs to buy 3 notebooks and some mechanical pencils. If each no

ElenaW [278]

Answer:

4 mechanical pencils

Step-by-step explanation:

Each notebook is worth $2.99

So buying 3 of the notebooks would leave her with $8.97

Then, $15.00 - $8.97= $6.05

4 0

3 years ago

Emma goes miniature golfing. She pays $7.50 for an admission ticket and $6.25 for each round she golfs. The total amount Emma pa

sergiy2304 [10]

Answer:

The equation that can be used to determine the number of rounds that Emma golfs is:

x=(c-7.50)/6.25

Step-by-step explanation:

From the information given, the total amount Emma pays to go miniature golfing is equal to the price of the admission ticket plus the result of multiplying the price per round of golf for the number of rounds and according to this, the equation would be:

c=7.50+6.25x, where:

c is the total cost for Emma to go miniature golfing

x is the number of rounds

Now, you can solve for x to determine the equation that can be used to find the number of rounds that Emma golfs:

x=(c-7.50)/6.25

You can replace c with 26.25:

x=(26.25-7.50)/6.25

x=18.75/6.25

x=3

5 0

2 years ago

Help please I’ll mark brainliest

MakcuM [25]

Answer:

a. east

b. 60 feet per second

Step-by-step explanation:

did this a while ago.

a. -180 is east, 120 is east. the car is traveling east because it is moving positive. read the last sentence of the description.

b. to calculate velocity you do time times position. in this case position is 60 and time is 1 so 60*1 is 60. so it is 60 feet per second.

7 0

3 years ago

Find the approximate circumference of a circle with a diameter of 80 yards.

Goryan [66]

________________________________

Solution,

Diameter (d)=80 yards

Radius(r)=80/2=40 yards

Circumference of circle=?

Now,

Circumference of circle=2 pi r

 =2*3.14*40

 =251.2 yards.

The right answer is 251 yards.

Hope it helps...

Good luck on your assignment

_____________________________

3 0

3 years ago

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