All categories

2 years ago

What is the value of b? 0.4(3b+10)=19

Mathematics

2 answers:

svet-max [94.6K]2 years ago

7 0

Hello!!

Isolate the variable by dividing each side by factors that don't contain the variable.

Your answer is 12.5.

Hope that you pass your test!!

Aloiza [94]2 years ago

6 0

0.4(3b + 10) = 19

First: Distribute

0.4 x 3b = 1.2b

0.4 x 10 = 4

1.2b + 4 = 19

Second: Subtract 4 from both sides

+ 4 - 4 cancels out

19 - 4 = 15

1.2b = 15

Third: Divide 1.2b on both sides

1.2b/1.2 cancels out

15/1.2 = 12.5

Answer: b = 12.5

Hope this Helps!!

You might be interested in

Solve:<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bzz%7D%7B4%7D%20%20%2B%205%20%5Cgeqslant%205.5" id="TexFormula1" title="

allochka39001 [22]

$\bf \cfrac{zz}{4} + 5\geqslant 5.5\implies \stackrel{\textit{subtracting 5 from both sides}}{\cfrac{zz}{4}\geqslant 0.5}\implies \stackrel{\textit{multiplying both sides by 4}}{zz \geqslant 2}$

7 0

3 years ago

Eliminate the parameter. x = 1/2t, y = 3t^3 - 1

Elis [28]

X = t/2. t = 2x
y = 3t^3 - 1
y = 3(2x)^3 -1

y = 24x^3 -1

4 0

2 years ago

Which equation, when graphed, has x-intercepts at (-1,0) and (-5,0) and a y-intercept at (0, -30)?

Vladimir [108]

If a function has roots -1 and -5, it must be in the form

$f(x)=a(x+1)(x+5)$

We can fix the coefficient a by imposing the passing through (0,-30):

$f(0)=-30=a(1)(5)\iff a=-6$

So, the function is

$f(x)=-6(x+1)(x+5)$

7 0

2 years ago

Cuanto es 120% en fraccion

kow [346]

The answer is 6/5 (six over five) 100 divided by 20

4 0

2 years ago

The graph at the right described the money two clubs are earning from fundraising. In how many weeks will the two clubs have the

pickupchik [31]

Answer:

52 weeks

Step-by-step explanation:

The club starting with $270 (club 1) is increasing their bank balance each week by ...

... $280 -270 = $10

The club starting with $10 (club 2) is increasing their bank balance each week by ...

... $25 -10 = $15

Club 2 is gaining on Club 1 by $15 -10 = $5 each week. So, the initial difference of $270 -10 = $260 will be overcome in ...

... $260/($5/week) = 52 weeks

_____

The same result is shown in the attached graph, which also shows that both clubs' bank balances will be $790 at that time.

7 0

2 years ago

What is the value of b? ​ 0.4(3b+10)=19 ​

What is the value of b? 0.4(3b+10)=19