Ask question

Ask question

All categories

3 years ago

11

johnny has 27 buttons. he gives away b buttons. choose the expression that shows the number of buttons johnny has left. b,27,bpl

us27,or27-b

2 answers:

Ksivusya [100]3 years ago

6 0

27-b because you are taking away

Paha777 [63]3 years ago

5 0

The expression would be 27-b because you don't know how many of his buttons he gave away out of the 27.

You might be interested in

In a market, 44 of the 80 types of vegetables are grown locally. What percent of the vegetables are grown locally? Identify the

VladimirAG [237]

44 is the part.
80 is the whole.

$\frac{44}{80} =\frac{x}{100}$

We need to cross multiply, which is: a/b = c/d ⇒ ad=bc

After cross multiplying, we get:

$44 \times 100 = 80 \times x\\\\4400 = 80x\\\\\sf{Divide ~80~ on~ both~ sides}\\\\\frac{80x}{80} =\frac{4400}{80}\\\\x =\frac{4400}{80} \\\\\boxed{\bf{52.3809524\approx 52.38}}$

Approximately 52.38% of the vegetables are grown locally.

5 0

2 years ago

13x - 5y (if x = 10 and y = 6)

OlgaM077 [116]

Answer:

13(10) - 5 (6)

130 - 30

= 100

Step-by-step explanation:

You replace the x with 10, and the y with 60 and answer normally

13(30) = 130

5(6) = 30

130 - 30 = 100

3 0

2 years ago

Read 2 more answers

Use the graphing calculator to graph the quadratic function y = 2x2 – 6x – 8. Which values are solutions of 0 = 2x2 – 6x – 8? Ch

SashulF [63]

4 is your answer. hope its correct

7 0

2 years ago

Read 2 more answers

How do you do this question?

mihalych1998 [28]

Answer:

C) π/6

Step-by-step explanation:

The area under the curve from x=-π/2 to x=k is 3 times the area under the curve from x=k to x=π/2.

$\int\limits^k_{-\frac{\pi }{2}} {cos\ x} \, dx = 3\int\limits^{\frac{\pi }{2}}_k {cos\ x} \, dx\\sin\ x\ |^{k}_{-\frac{\pi }{2}} = 3\ sin\ x\ |^{\frac{\pi }{2}}_k\\(sin\ k - (-1)) = 3\ (1 - sin\ k)\\sin\ k + 1 = 3 - 3\ sin\ k\\4\ sin\ k = 2\\sin\ k = \frac{1}{2}\\k = \frac{\pi}{6}$

Graph: desmos.com/calculator/mezlen9hb4

3 0

3 years ago

Find a formula for the nth term

Delvig [45]

Nth term is -0.2n + 2.7

3 0

2 years ago