Answer:
-11x=-66
x=6

Explanation:
-11x-12=-78
1) Add 12 to both sides.
-11x=-78+12
-11x=-66
2) Divide both sides by -11.
x=-66/-11
x=6

Hope this helps! Please leave a thanks and brainliest answer if you can :)

3 0

3 years ago

To make a salad dressing you mix vinegar and olive oil in the ratio 2:5 how much olive oil is needed with 20 ml of vinegar

eduard

Answer:

Step-by-step explanation:

Set this up as a proportion with the ratios being

$\frac{vinegar}{oil}$ If there is a 2:5 ratio of vinegar to oil, that ratio looks like this:

$\frac{v}{o}:\frac{2}{5}$ and if we are looking for how much oil, x, is needed for 20 ml of vinegar, then that ratio completes the proportion:

$\frac{v}{o}:\frac{2}{5}=\frac{20}{x}$ and cross multiply.

2x = 100 so

x = 50 ml of oil

3 0

3 years ago

Help help help read the image please

Liula [17]

All it’s asking is how many students basically scored 90 and under. there’s a total of 25 kids and 14 scored a 90 or less.

6 0

3 years ago

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