All categories

3 years ago

This is worth 15 points please help!

Mathematics

1 answer:

liubo4ka [24]3 years ago

3 0

Answer:

D i mean i guess you try to salve on a piece of paper

You might be interested in

A hummingbird can travel up to 15 meters per second.

Elena L [17]

Speed=15 m/s
1 hour=60 minutes
60 minutes=60 minutes (60 seconds/1 minute)=3600 seconds.

15 m/s=(15 m/s)(1 mile / 1609 m)(3600 s/1h)=33.56... miles/hour≈
≈33.6 miles/hour.

Answer: the speed in miles per hour would be 33.6 miles/hour

6 0

3 years ago

Read 2 more answers

3. Solve using substitution. x - y = 4 3x - 2y = -5

Vedmedyk [2.9K]

Given:

The system of linear equations are $x-y=4$ and $3x-2y=-5$

We need to determine the solution to the system of equations using substitution method.

Solution:

The solution can be determined using the substitution method.

Let us substitute $x=4+y$ in the equation $3x-2y=-5$

Thus, we have;

$3(4+y)-2y=-5$

$12+3y-2y=-5$

$12+y=-5$

$y=-17$

Thus, the value of y is -17.

Substituting $y=-17$ in the equation $x-y=4$ , we get;

$x+17=4$

$x=-13$

Thus, the value of x is -13.

Hence, the solution to the system of equations is (-13,-17)

6 0

3 years ago

4y + 8 = 0 Written in slope- intercept form

Triss [41]

Slope intercept form is y= form
4y+8=0
-8 both sides
4y=-8
÷4 both sides
y=-2

5 0

3 years ago

Need help with this question please!!

Andrews [41]

The answer is 5.69 .

4 0

3 years ago

It costs $859.32 to have a school dance. The dance is $8 per ticket.

GalinKa [24]

Answer: 108 tickets must be sold to cover the cost.

123 tickets must be sold to make a profit of approximately $980.68

Step-by-step explanation:

Just divide 859.32 from 8 to find out how many tickets must be sold to cover the cost. Same for part b.

Hope this helps!

3 0

3 years ago