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2 years ago

8

Find the percent increase or decrease for each of the following values (Indicate whether each is an increase or a decrease). y t

o 0.78y

1 answer:

ehidna [41]2 years ago

5 0

Answer:

y to 0.78y is a decrease

Step-by-step explanation:

y by itself can also be written as 1y, and 0.78y is less than 1, thus y to 0.78y is a decrease.

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How many times greater was the temperature in Miami (45) than the lowest in San Diego (25)

Greeley [361]

Answer:

<em>The temperature in Miami is 9/5 times the temperature in San Diego.</em>

Step-by-step explanation:

<u>Ratios</u>

To compare the temperature in Miami (45) with the temperature in San Diego (25), we use the division or ratio between both numbers:

$\displaystyle \frac{45}{25}$

Simplify the fraction dividing by 5:

$\displaystyle \frac{9}{5}$

Since the relation between them is 9/5, it means the temperature in Miami is 9/5 times the temperature in San Diego.

3 0

3 years ago

Help with Math PLZ (Questions in screenshot)

-Dominant- [34]

1.) Let's say that the circle on the graph below represents x. The arrow is pointing to all the numbers greater than x, which happens to be on -2. If it points right, this means that x can equal to any number greater than -2. So your answer is x > -2.

2.) For inequalities such as these, you can simplify just like what you do for normal equations. Let's isolate x.

$x - 7 > 10$

--> $x > 10 + 7$

---> $x > 17$

3.) $3x \leq 21$

--> $\frac{3x}{3} \leq \frac{21}{3}$

---> $x \leq 7$

4.) $5a - 2 < 18$

--> $5a < 18 + 2$

---> $5a < 20$

----> $\frac{5a}{5} < \frac{20}{5}$

-----> $a < 4$

5.) $2t + 8 \geq -4(t + 1)$

--> $2t + 8 \geq -4t - 4$

---> $2t + 4t \geq -8 - 4$

----> $6t \geq -12$

-----> $t \geq -2$

7 0

3 years ago

Solve for x: 3 < X + 3 < 6

larisa86 [58]

Answer:

0<x<6

I think this is right, hope this helps!

4 0

2 years ago

Tiffany starts walking her dog at 1:39 p.M. She gets back home at 2:28 p.M. How long did Tiffany walk her dog?

Tomtit [17]

Answer:

49 minutes

Step-by-step explanation:

Given :

Start time = 1:39 p. M

Return time = 2.28 p. M

Time spent Walking dog = difference between the start time and return time

Return time - start time

(2:28 p.m - 1:39p.m) = 49 minutes

Hence, Tiffany spent 49 minutes walking her dog

4 0

3 years ago

Read 2 more answers

What is the completely factored form of 8x2 - 50?

bogdanovich [222]

Answer:

2(2x-5)(2x+5)

Step-by-step explanation:

I think you meant to say 8x^2-50. If so then factoring this down should be easy. Since there is no x value in the middle the equation will have a positive and a negative number. This is also a perfect square therefore, this factors down to: 2(2x-5)(2x+5).

3 0

3 years ago

Read 2 more answers