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Nady [450]
3 years ago
9

On the field trip, Abbey, Bethany, Christine, and Darcy bought a total of 4 hot dogs and 3 sodas, which cost the girls $17.00. E

dward bought 2 hot dogs and 1 soda from the same lunch stand and it cost him $7.80 before tax. How much would one hotdog and one soda cost before tax?
Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0

Answer:

6.30$

Step-by-step explanation:

If you add 7.80$ and 7.80$ that come to 4 hot dogs,

The rest of the money is how much one soda cost ( 2.40$ ),

Dividing that 7.80$ by 2, To only have one hot dog, would put you at

3.90$ fro one hot dog, then all you have to do is add them together, to get the total of 6.30

 7.80   |     17.00      |    7.80/2  |    2.40

+ 7.80  |    - 15.60     |    3.90     |  + 3.90

15.60   |   2.40          |                |   6.30

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Two cars start from the same point driving in opposite directions. Both cars drive 6miles. One car stops, the other car makes a
dimaraw [331]

Answer:

  • <u>14.4 mile</u>²

Explanation:

1. By driving 6 miles each, the cars will be 6 miles + 6 miles = 12 miles appart.

2. When one car stops and the other car makes a 90° left-hand turn and drive 8 miles, you can model the situation with a right triangle, where one leg is 12 miles, the other leg is 8 miles, and the hypotenuse is the distance that separates the cars.

Hence, you must use Pythagoras to find that distance.

3. Pythagoras

  • hypotenuse² = leg₁² + leg₂²

  • hypotenuse = (12 mile)² + (8 mile)² = 144 mile² + 64 mile² = 208 mile²

  • hypotenuse=\sqrt{208mile^2}=14.4mile^2, which is rounded to the neartest tenth of a mile.
8 0
2 years ago
Use the discriminant to determine the number of solutions.<br> x2 + x = 12
Sati [7]

Answer:

x=4

Step-by-step explanation: So you do 2x plus 1x which is 3x. Then you divide both sides by 3 which leaves you with x=4. Thats your answer. <3

3 0
3 years ago
Find the lcm of the pair of numbers. 6 and 30
garik1379 [7]
Ffdgrguyytttttggcfdfdggfdccdddg
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Consider a prism with a height of 8 inches and a 14-inch by 14-inch square base, and a cylinder with a height of 10 inches and a
vekshin1

Answer:

782.5inch³

Step-by-step explanation:

<u>The question is on volume of a prism and that of a cylinder</u>

<u>Finding the volume of the prism</u>

V=Bh where B is the base area and h is the height

Base area=14"×14"=196 inch²

height =8"

v=196×8= 1568 in³

<u>Finding volume of the cylinder</u>

v=\pir²h where r is the radius of cylinder and h is the height of cylinder

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5 0
2 years ago
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Leni [432]
You can set up two equations from the information given. I will set them up for you:

32 = 4x + 2y
36 = 5x + 2y

Let's solve the first equation to come up with a value for y.

32 = 4x + 2y
32 - 4x = 2y
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Now we plug y into the other equation.

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Now we have our real x value and we can plug it into the first equation.

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Since x = 4 and y = 8, you get the final coordinates of (4,8).

Your answer is the second statement provided above.
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