All categories

3 years ago

How do you do number 10?

Mathematics

1 answer:

alexandr402 [8]3 years ago

7 0

(3x +4) + (6x + 5) = 90*
*note that complementary = 90, supplementary = 180
9x + 9 = 90

9x = 90 - 9

9x/9 = 81/9

x = 9

hope this helps

You might be interested in

Janie receives an allowance of $3 per week. in addition, she can earn $2 for each chore she does. this week, she wants to earn e

Elena-2011 [213]

Let

c-------> the number of chores

we know that

$3+2c \geq 13$ --------> inequality

Solve for c

$3+2c \geq 13\\2c \geq 13-3\\ 2c\geq10 \\ c\geq5$

therefore

<u>the answer is</u>

The minimum number of chores that Janie must do is $5\ chores$

6 0

3 years ago

Read 2 more answers

Can I get help on C plz

zavuch27 [327]

Answer:

the answer would be 6...

4 0

3 years ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Zielflug [23.3K]

Answer:

-5, 5

Step-by-step explanation:

The line in this problem can be written in the form

$y=mx+q$ (1)

where:

$m=\frac{2}{3}$ is the slope

q is the y-intercept

We know that the line passes through the point (-2,5), so substituting these values into eq.(1), we find the value of the y-intercept:

$q=y-mx=5-(\frac{2}{3})(-2)=5+\frac{4}{3}=\frac{19}{3}$

So the equation of the line is

$y=\frac{2}{3}x+\frac{19}{3}$ (2)

Now we know that point A has coordinates

A(x,3)

So by substituting into eq.(2), we find the missing x-coordinate:

$3=\frac{2}{3}x+\frac{19}{3}\\9=2x+19\\x=\frac{9-19}{2}=-5$

Similarly, point B has coordinates

B(-2,y)

so substituting into eq(2), we find the missing y-coordinate:

$y=\frac{2}{3}(-2)+\frac{19}{3}=5$

6 0

3 years ago

How long will it take for $6400 to grow to $43,800 at an interest rate of 3.4% if the interest is compounded continuously?

andrew-mc [135]

Answer:

57.53years to the nearest hundredth

Step-by-step explanation:

For compound interest,A=P(1+r/100)^t

where r=rate of interest

t= investment tenor

$43800=6400(1+3.4/100)^t

which simplifies to 57.5250≈57.53 to the nearest hundredth

7 0

2 years ago

A rectangular piece of board is 0.894 m long and 0.665 m wide. Which of the following shows the boards dimensions, each written

skelet666 [1.2K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers