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2 years ago

Calculate the cost of 4 liters of gasoline if 10 Liters of gasoline cost $8.20 (using proportional relationship).

Mathematics

1 answer:

KATRIN_1 [288]2 years ago

7 0

I think it’s b but i’m not sure sry lol

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15. In the rhombus shown below, mz1 = 160°. What are the measures of 22 2 points

egoroff_w [7]

Answers:

angle2 = 160 degrees

angle3 = 10 degrees

============================================

Explanation:

The two triangles are congruent. We can prove this using SSS. The upper triangle is a mirrored copy of the lower triangle.

Since angle1 = 160 degrees, this means angle2 = 160 also. This is because the corresponding pieces of congruent triangles match up. Or you could use the second part of the hint which says "Opposite angles in a rhombus are congruent".

Let x be the measure of angle 3. For either isosceles triangle, it has congruent base angles measured x degrees. They add to the 160 degrees mentioned earlier to get a total of 180.

160+x+x = 180

2x+160 = 180

2x = 180-160

2x = 20

x = 20/2

x = 10

Angle 3 is 10 degrees.

6 0

2 years ago

PLS HELP IM DESPERATE

AURORKA [14]

Answer:

(0,5)

Step-by-step explanation:

you are moving 0.5 units

3 0

2 years ago

5. 4i(-2 - 4i)

Wewaii [24]

Answer:

$4i( - 2 - 4i) = - 8i + 16 \\ \\ 5i.i.( - 2i) = 10i \\ \\ (- 5 - i)(1 + i) = -5-5i-i+1\\=-4-6i$

4 0

2 years ago

During the day,Sam spent $4.85 on lunch.he also bought 2 books for $7.95 each. At the end of the day we had $8.20 left how much

Vlada [557]

20.75 because if you add 4.85+7.95+7.95 add that you get 20.75

7 0

3 years ago

Please help me with this

kondaur [170]

For number 1a. the answer is 7 to 26 or
7:26 or
$\frac{7}{26}$
For number 2a. the answer is 8 to 28 or
8:28 or
$\frac{8}{28} or \frac{2}{7}$
For number 3a. the answer is 12 to 13 or
12:13 or
$\frac{12}{13}$
For number 4a. the answer is 19 to 12 or
19:12 or
$\frac{19}{12}$
For number 5a. the answer is 29 to 10 or
29:10 or
$\frac{29}{10}$
For number 6a. the answer is 11 to 28 or
11:28 or
$\frac{11}{28}$

I just did your homework

4 0

3 years ago