3 years ago

Lily has 24 classmates she gives each classmates 1 pencil how many pencils in all does she give her classmates

Mathematics

2 answers:

evablogger [386]3 years ago

6 0

Omg reallly..... its obviously 24

bezimeni [28]3 years ago

5 0

I think the answer you are wanting is... 24

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7x +2y = 24<br> 8x+2y= 30<br> What is x and y

Liula [17]

Answer:

x = 6

y = -9

Step-by-step explanation:

we have:

7x +2y = 24 equation 1

8x+2y= 30 equation 2

using equation 2 we have:

8x = 30 -2y

x= $\frac{30-2y}{8}$ equation 3

using equation 3 in equation 1 we have:

7( $\frac{30-2y}{8}$ )+2y = 24

$\frac{210}{8} - \frac{14y}{8} +2y =24\\\\\frac{1}{4}y = -\frac{18}{8} \\\\y=-\frac{18}{8} * 4\\\\y=-9$

so we have:

x= $\frac{30-2(-9)}{8}$

x= $\frac{30+18}{8}$

x=6

7 0

3 years ago

Read 2 more answers

Please help, it's for a geometry quiz, show all work please, question in the image attached

aliya0001 [1]

Answer:

m<ABC=94°

m<BCD=25°

m<ACB=43°

Step-by-step explanation:

To find <mBCD

m<ABD=133°, so m<CBD=133° too.

A triangle is equal to 180°.

22°+133°=155°

80°-155°=25°

To find <mACB

You first need to know triangle ACD measurements.

m<ADC=44° (22°+22°)

Then you take the two 25 and add them.

25°+25°=50°

50°+44°=94°

180°-94°=86°

86°÷2=43°

To find m<ABC

43°+43°=86°

180°-86°=94°

4 0

2 years ago

Ashley is riding her bike to train for a triathlon and so far has traveled 96 miles.

Elina [12.6K]

Answer:

6.4

Step-by-step explanation:

she has been riding her bike for 6.4 hours.

7 0

2 years ago

The number 18 is which percent of 15?

svetoff [14.1K]

3/15=0.2
0.2+1=1.2
1.2*100=120
120%

Hope this helps :)

5 0

3 years ago

caroline and sarah win some money and share it in the ratio of 6:1 caroline gets £70 more than her how much did they get altoget

svetlana [45]

Answer: £84

Explanation:
84-70=14
14*6=84
6:1
84:14

4 0

3 years ago