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3 years ago

Evaluate the expression, using the given value of the variable.

Mathematics

2 answers:

natka813 [3]3 years ago

3 0

-10 is the answer to the question above.

Natali [406]3 years ago

3 0

Answer:

-10

Step-by-step explanation:

2-6x+2x

2-(6*3)+(2*3)

2-18+6

-16+6

-10

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During a week-long dry spell, the water level in a pond decreased by 4 in. Per day, except for two days when it decreased by hal

Helga [31]

Answer:

24 inches.

Step-by-step explanation:

Given:

During a week the water level in a pond decreased by 4 in. Per day,

For two days, it decreased by half that amount = $4\times\frac{1}{2}=2\ inches\ per\ day$

Question asked:

How much did the water level decrease in the pond in one week?

Solution:

As we know, there are 7 days in a week.

Each day water level decreased by = 4 inches

In 5 days, water level decreased by = $4\times5=20\ inches$

<u>For exceptional 2 days:</u>

Each day water level decreased by = 2 inches

In 2 days, water level decreased by = $2\times2=4\ inches$

Water level decreased in whole week = 20 + 4 = 24 inches

Therefore, water level decreased 24 inches in the pond in one week.

7 0

3 years ago

Needing help with this!

Sonbull [250]

assuming the scale is by 1,

a) the slope is rise/run so it rises 3 units and moves 4 units right therefore the slope is 3/4

b) the y intercept is where the line crosses the y axis so by looking at the graph you can tell that the y int is 1

c) and the equation is made up of the slope and the y intercept: y= 3/4x + 1

6 0

4 years ago

What is the prime factorasation of 96

dimulka [17.4K]

So, the prime factors of 96 are written as 2 x 2 x 2 x 2 x 2 x 3 or 3 x 25, where 2 and 3 are the prime numbers.

5 0

3 years ago

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Juan is buying soda for a class party. he can go to the vending machine and buy 12-oz cans for $0.60 each, to the corner store a

rodikova [14]

Answer:

Best deal is corner store

Step-by-step explanation:

LCM is 480 oz

480 oz of the Vending Machine would be £24 (0.60 x (480/12))

480 oz of the Corner Store would be £22.80 (0.95 x (480/20))

480 oz of Grocery store would be £23.25 (1.55 x (480/32))

4 0

4 years ago

What is Pythagorean triples

Georgia [21]

A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. Such a triple is commonly written (a, b, c), and a well-known example is (3, 4, 5). If (a, b, c) is a Pythagorean triple, then so is (ka, kb, kc) for any positive integer k.

7 0

3 years ago

Read 2 more answers