All categories

4 years ago

Solve for b...... 15b=5

Mathematics

2 answers:

Elis [28]4 years ago

8 0

The answer is b=3. divide 5 into 15

vovikov84 [41]4 years ago

3 0

15b=5 dived 15 to both sides
B=.33

You might be interested in

If two angles are complimentary and one angle measures 34 degrees, what is the measure of the other angle?

allochka39001 [22]

Answer: 90º

Step-by-step explanation: complimentary angles are either of the two angles whose sum is 90º

8 0

2 years ago

Y=-x^2+2x+10 y=x+2 Substitution Please show your work Need ASAP

erik [133]

Answer:

The solutions of the system of equations are the points

$(\frac{1-\sqrt{33}} {2},\frac{5-\sqrt{33}} {2})$

$(\frac{1+\sqrt{33}} {2},\frac{5+\sqrt{33}} {2})$

Step-by-step explanation:

we have

$y=-x^{2} +2x+10$ ----> equation A

$y=x+2$ ----> equation B

Solve the system by substitution

substitute equation B in equation A

$x+2=-x^{2} +2x+10$

solve for x

$-x^{2} +2x+10-x-2=0$

$-x^{2} +x+8=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-x^{2} +x+8=0$

$a=-1\\b=1\\c=8$

substitute in the formula

$x=\frac{-1\pm\sqrt{1^{2}-4(-1)(8)}} {2(-1)}$

$x=\frac{-1\pm\sqrt{33}} {-2}$

$x=\frac{-1+\sqrt{33}} {-2}$ -----> $x=\frac{1-\sqrt{33}} {2}$

$x=\frac{-1-\sqrt{33}} {-2}$ -----> $x=\frac{1+\sqrt{33}} {2}$

Find the values of y

For $x=\frac{1-\sqrt{33}} {2}$

$y=x+2$

$y=\frac{1-\sqrt{33}} {2}+2$ ----> $y=\frac{5-\sqrt{33}} {2}$

For $x=\frac{1+\sqrt{33}} {2}$

$y=x+2$

$y=\frac{1+\sqrt{33}} {2}+2$ ----> $y=\frac{5+\sqrt{33}} {2}$

therefore

The solutions of the system of equations are the points

$(\frac{1-\sqrt{33}} {2},\frac{5-\sqrt{33}} {2})$

$(\frac{1+\sqrt{33}} {2},\frac{5+\sqrt{33}} {2})$

5 0

3 years ago

2. Mikel eats 22 ounces of candy in 11 days.

Sergeu [11.5K]

Answer:

22/11=2 2x8=16

16 ounces = 1 pound

Step-by-step explanation:

a. 2 ounces per day

b. 8 days to eat 1 pound of cady

3 0

2 years ago

5a + 7b - 12a + 6c - 13b - 22a + 53c

Orlov [11]

Answer:

-29a-6b+59c

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

ASAP What percentage of total expenses is spent on housing? (round to nearest whole percent)

olga nikolaevna [1]

23.69% or rounded to 24%

5 0

3 years ago

Read 2 more answers