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3 years ago

Find the value of 5x+6 when x=-2

Mathematics

2 answers:

stealth61 [152]3 years ago

8 0

-4 is the answer on edge 2020

jeka57 [31]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

5 times negative -2 is -10 and you just add 6 so the answer is -4

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a clothing store is having a sale of 30% off all dresses what is the discount on new price of the dress originally cost $90

Paul [167]

Answer:

$63

Step-by-step explanation:

30% of 90 is 27

90-27=63

8 0

4 years ago

Write an equation to represent the relationship between the step number, n, and the number of dots, y.

KengaRu [80]

The equation that represents the relationship between step number and the number of dots is $y=5^n$ .

Solution:

Let the number of dots be y.

Step number 0: Number of dots = 1

y = 1

Using exponential rule: $a^0=1$

$y=5^0$

Step number 1: Number of dots = 5

y = 5

$y=5^1$

Step number 2: Number of dots = 25

y = 25

$y=5^2$

Step number 3: Number of dots = 125

y = 125

$y=5^3$

Note that in step number 0 the power is 0, 1st step power of 5 is 1, 2nd step power of 5 is 2 and the third step power of 5 is 3.

If the process goes on up to n steps, then power of 5 is n.

∴ Step number n:

$y=5^n$

Number of dots = $5^n$ .

Hence the equation that represents the relationship between step number and the number of dots is $y=5^n$ .

5 0

3 years ago

Choose the answer that makes the sentence true. rational numbers are real numbers.

Elina [12.6K]

Answer:

what sentence

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is 9x-8=0 help pls

Tamiku [17]

Answer:

$\large\boxed{x=\dfrac{8}{9}}$

Step-by-step explanation:

$9x-8=0$ add 8 to both sides

$9x-8+8=0+8$

$9x=8$ divide both sides by 9

$\dfrac{9x}{9}=\dfrac{8}{9}\\\\x=\dfrac{8}{9}$

8 0

3 years ago

Read 2 more answers

Joshua sells 13 toys per hour. Sarah sells 16 toys per hour. This week Sarah sold an additional 20 toys. Write an expression tha

snow_tiger [21]

Assuming that they each work 24hrs a day 7 days a week (I haven't got anything else to go on...sorry) to find the total for Joshua you must first multiply 13x24 = 312, for the toys sold per day, and then 312x7 = 2184, for the number of days per week. so j = 2184
then for Sarah's total we must first multiply 16x24 = 384 for the toys sold per day and then 384x7 = 2688 for the toys sold per week. and 2688+20 = 2708 for the extra 20 she sold. so s = 2708

REMEMBER, THIS IS ASSUMING THEY WORK 24/7 MEANING THEY WORK 168 HOURS PER WEEK.

IF YOU NEED A DIFFERENT ANSWER LET ME KNOW AND I'LL TRY TO FIX IT. IF YOU LET ME KNOW THE HOURS THEY WORKED I CAN DO TAT FOR YOU AS WELL.

8 0

4 years ago