Lesson 5 Practice Problems

Mathematics

2 answers:

nasty-shy [4]2 years ago

8 0

Answer:

Find out the how many pizzas are delivered to a customer who pays $80 .To proveAs It is not stated, but implied that all pizzas cost.

Step-by-step explanation:

brainliest please

olga2289 [7]2 years ago

3 0

Let the price of a pizza be x
Delivery charge be y
Cost of two pizzas = 2*x
2x+y=25. ————-(1)
Y=25-2x
Cost of 5 pizza = 5*x
5x+y=58. —————-(2)
Substitute y=25-2x in equation 2
5x +25-2x=58
3x+25=58
Subtract 25 from both sides
3x =58-25
3x=33
Divide both sides by 3
X=33/3
X=11
Plug-in x= 11 in equation 1
2*11+y=25
22+y=25
Y=25-22
Y=3
Cost of a pizza =$11
Delivery charge=$3

80-3=77
Number of pizzas delivered=77/11=7

7 pizzas are delivered

You might be interested in

Can someone help me identify what quadrilateral is this?

photoshop1234 [79]

Answer:

Its C

Step-by-step explanation:

4 0

3 years ago

Please help me. if you can help me answer multiple questions only 3. offering 30 points for it

lubasha [3.4K]

Answer:

(-9, -5)

Step-by-step explanation:

Ok, so when you move an image to the right, you are moving along the x-axis, and when you move up, you are moving up the y-axis. So if the altered image is (x,y) and the values are (-5, -1), you reverse what has been done to the image. In this case, since we moved to the right 4 units, we know that means we added 4 to x, so we subtract 4 to get -9. And then, for the y-value, because we added 4, we do the opposite, and subtract 4 to get -5. So the pre-image should be (-9, -5)

7 0

3 years ago

The temperature is -3.5 degrees Fahrenheit at 7:00 am. During the next 4 hours, the temperature decreases by -15.5 degrees. What

Kruka [31]

-19 degrees Fahrenheit

7 0

3 years ago

If the length of AO is double the length of CO, the length of BO is?

andreev551 [17]

BO is double that of DO. In other words, BO is two times longer than DO. The answer is choice B

For example, if DO were 3 units long, then BO would be 6 units long (2*3 = 6). This works because the triangles DCO and BAO are similar triangles. The corresponding sides are in the same ratio or proportion to one another. The larger triangle (BAO) has sides that are twice as long as the smaller triangle's (DCO) corresponding sides.

Side note: we can prove the triangles to be similar using the AA (angle angle) similarity theorem. The first pair of angles are the vertical angles DOC and BOA which are congruent to each other.The second pair is CDB and ABD which are congruent by the alternate interior angle theorem. Check out the attached image for a visual.