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Alenkasestr [34]

3 years ago

5

Rocco bought a soft drink for three dollars and six candy bars, He spent a total of twenty one dollars. How

1 answer:

Sophie [7]3 years ago

3 0

Answer:

x=3

Step-by-step explanation:

The equation will be 3+6x=21 since we know that the soft drink costs 3 dollars and he bought 6 candy bars(6 times x or 6x). We also know that the total cost for this merchandise is 21 dollars. Now you solve the equation! First subtract 3 from both sides(since the inverse for addition is subtraction we SUBTRACT 3 from bothe sides). You are left with 6x=21-3 or 6x=18. Now you divide Each side by 6(because the inverse operation of multiplication is division). You have the answer! x=18/6 or x=3! Hope it helped!!

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gayaneshka [121]

Answer:

s = 10

Step-by-step explanation:

since the triangles are similar then the ratios of corresponding sides are in proportion , that is

$\frac{AB}{XY}$ = $\frac{BC}{YZ}$ ( substitute values )

$\frac{8}{4}$ = $\frac{s}{5}$ ( cross- multiply )

4s = 40 ( divide both sides by 4 )

s = 10

8 0

2 years ago

Which expression is equivalent to -32 to 3/5 power

levacccp [35]

<u>Answer:</u>

8

<u>Step-by-step explanation:</u>

We are given the following expression and we are to find the simplest form of this expression:

$- 3 2 ^ { \frac { 3 } { 5 } }$

First of all, we will factor the coefficient:

$3 2 = 2 ^ 5$

Rewriting it as:

$- ( 2 ^ 5 ) ^ { \frac { 3 } { 5 } }$

Applying the exponent rule $(a^b)^c = a^{bc}$ to get:

$-2^{5.\frac{3}{5}}=-2^3$

$-2^3=-8$

6 0

3 years ago

Item 17 The amount of chlorine in a swimming pool varies directly with the volume of water. The pool has 2.5 milligrams of chlor

zvonat [6]

$8000 gal *\frac{ 1 L}{0.264 gal}*\frac{2.5 mg}{1 L} = 75,757 mg$

Rounding to nearest thousand gives 76,000 mg of chlorine

7 0

3 years ago

On Monday, 339 students went on a trip to the zoo. All 6buses were filled and 9 students had to travel in cars. How many student

marissa [1.9K]

Answer: Step-by-step explanation:

not sure

4 0

3 years ago

Read 2 more answers

Your friend claims that if a line has a slope less than 1, then any line perpendicular to it must have a positive slope. Is your

mezya [45]

Answer:

The friend's claim is not correct

Step-by-step explanation:

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal yo -1)

Example

A given line has a slope of $m_1=1/2$ ---> (is less than 1)

the slope of the line perpendicular to the given line is equal to

$m_1*m_2=-1$

substitute

$(1/2)*m_2=-1$

$m_2=-2$

so

the perpendicular line don't have a positive slope

therefore

The friend's claim is not correct

5 0

3 years ago