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timofeeve [1]
3 years ago
8

What is the unit rate for the ratio 280 student/8 buses​

Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0

Answer:

Step-by-step explanation:

280 students/8 buses= 35 students/ 1 bus

answer is A

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Mayra did not have a date on a Friday night so she decided to mix solutions that she obtained from her garage. She has 9 liters
siniylev [52]

Let x be the number of liters of the 10% solution she needs to use. She'd end up with a 6% solution with a volume of 9+x liters. The starting solution contains 0.04*9 = 0.36 liter of salt. Each liter of the 10% solution contributes 0.1 liter of salt, so that

0.36+0.1x=0.06(9+x)

Solve for x:

0.36+0.1x=0.54+0.06x

0.04x=0.18

x=4.5

so Mayra needs to add 4.5 liters of the 10% solution.

4 0
4 years ago
Emma read the statement “the quotient of six and a number, x, is the same as negative two times the difference of x and 4.5.” Sh
patriot [66]

The errors Emma made are

  • She should have used division to represent the quotient of six and x
  • She should have used parentheses to show that - 2 is multiplied by (x - 4.5)

<h3>Writing an expression as an equation</h3>

From the question, we are to determine the errors that Emma made

The given statement is

"The quotient of six and a number, x, is the same as negative two times the difference of x and 4.5"

"The quotient of six and a number, x", can be expressed as

6/x

"Two times the difference of x and 4.5", can be expressed as

2(x - 4.5)

Hence, the errors Emma made are

  • She should have used division to represent the quotient of six and x
  • She should have used parentheses to show that - 2 is multiplied by (x - 4.5)

Learn more on Writing an expression as an equation here: brainly.com/question/13155862

#SPJ1

8 0
2 years ago
3√6/√15<br> Solve it using radicals please!!!
algol [13]

Answer:

3√10/5

Step-by-step explanation:

\frac{3\sqrt{6} }{\sqrt{15} }

Rationalize √15

\hookrightarrow \frac{3\sqrt{6} }{\sqrt{15}}\times\frac{\sqrt{15} }{\sqrt{15} } \\\\\hookrightarrow \frac{3\sqrt{6} \times\sqrt{15} }{15} \\\\\hookrightarrow \frac{3\sqrt{90}}{15} \\\\\hookrightarrow \frac{3\sqrt{10} }{5} \\\\

7 0
3 years ago
Given: DC is a diameter of circle k (O). DC ⊥ AB <br> Prove: AC ≅ BC
aleksley [76]

Answer:

See explanation

Step-by-step explanation:

Connect points A and O and B and O. Consider two right  triangles AOE and BOE. In this triangles,

  • AO=BO as circle's radii;
  • OE is common leg.

By HL theorem, these triangles are congruent, thus, AC=BC.

7 0
4 years ago
A car rents for $40 per day plus 20¢ per mile. You are on a daily budget of $92. What mileage will allow you to stay within your
N76 [4]
If m is miles miles driven to stay within budget
given:
(daily budget) - (daily rental fee) =
+92+-+40+=+52+
$52 is left for milage cost
+52+%2F+.2++=+260+ (dollars)/(dollars/mile)
A maximum of 260 miles/day driven will allow you to stay within budget
(so the answer is 260 miles/day)
3 0
3 years ago
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