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3 years ago

If a printer prints 28 copies in 1 minute how many would it print in 3 minutes and 45 seconds?

Mathematics

1 answer:

Wittaler [7]3 years ago

3 0

3minutes 45 seconds = 3 45/60 = 3.75 minutes

28 copies/ 1 minute = x copies/3.75 minutes

using cross products

28 * 3.75 = 1 * x

105 = x

We can print 105 copies in 3 3/4 minutes

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8 3/8 -3 1/4 equals what

aleksandrvk [35]

Answer:

Exact Form: 41/8

Decimal form: 5.125

Mixed number form: 5 1/8

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3 years ago

Write the equation of a slope intercept form with a slope of 9 and a y-intercept of -3

Usimov [2.4K]

Answer:

y = 9x-3

Step-by-step explanation:

since the slope intercept form is in the y=mx+b form, you just have to plug in the slope for m and the y-intercept for b.

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4 years ago

Let u = <-6, -2>, v = <-2, 3>. Find -3u + 2v.

Scrat [10]

We have the following vectors:
u = <-6, -2>
v = <-2, 3>
Let's multiply each vector by its corresponding scale:
-3u = <18, 6>
2v = <-4, 6>
Now we add the new vectors:
-3u + 2v = <18, 6> + <- 4, 6>
-3u + 2v = <(18-4), (6 + 6)>
-3u + 2v = <14, 12>
Answer:
-3u + 2v = <14, 12>

4 0

4 years ago

Which expression is a factor of x^2-5x-6?

Anika [276]

X^2 - 5x - 6
= (x - 6)(x +1)

answer (x - 6) and (x +1) are factors of (x^2-5x-6)

7 0

3 years ago

List the potential solutions to 2log x − log3 = log3 from least to greatest.

Sindrei [870]

Remember
if no base is stated, assume base 10
and
$log_a(b)=c$ translates to $a^c=b$
and
$log(a)+log(b)=log(ab)$
and
$log(a)-log(b)=log(\frac{a}{b})$
and
$(r)log(x)=log(x^r)$

so

minus log3 from both sides

2log(x)-2log(3)=0
translate
$log(x^2)-log(3^2)=0$
translate
$log(\frac{x^2}{9})=0$
translate
$10^0=\frac{x^2}{9}$
$1=\frac{x^2}{9}$
times both side by 9
9=x²
+/-3=x

x=-3 or 3

4 0

3 years ago

Read 2 more answers