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Grace [21]
3 years ago
15

The sum of two numbers is 44 . Their difference is 22 .

Mathematics
2 answers:
marin [14]3 years ago
8 0

x+y =44

x-y=22

x = 22+y

22+y +y =44

22+2y =44

2y=22

y=11

x=22+11=33

check:

11 +33 = 44

33-11=22


 so the numbers are 11 and 33

elena55 [62]3 years ago
5 0
The answer is 11 or 10
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the temperature started at 89°f. if the temperature went up 6°f and then down 12°f, how many degrees above or below the high is
Sonja [21]
The answer is 6 degrees below the high. 
89+6=95
95-12=83
4 0
2 years ago
Guys please help! In triangle CDE, the measure of angle C is 90 degrees, side CD is 15 and DE is 3 more than CE. Find the length
AURORKA [14]
You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)

your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°

-> insert those values, with c substituted with b+3 to remove c

c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE

DE=CE+3=36+3=39
4 0
3 years ago
In a class of 40 students, 8 are in the drama club and 12 are in the art club. If a student is selected at random, what is the p
babymother [125]

Answer:

total students = 40probability of selecting a student from art club= 12/40= 3/10

Step-by-step explanation: because am big math

4 0
1 year ago
Read 2 more answers
A bag contains 5 purple buttons, 12 blue buttons and 3 green buttons. A single button is randomly chosen.
bekas [8.4K]

Answer:

60%

Step-by-step explanation:

5+3+12=20

20 = 1/5 of 100

12 x 5 = 60

5 0
3 years ago
Each marble bag sold by Lucy's Marble Company contains 7 yellow marbles for every 5 green marbles. If a bag has 45 green marbles
Elan Coil [88]

Answer:

63 yellow marbles

Step-by-step explanation:

You can set up this equation as a proportion:

7/5 = x/45

Divide 45 by 5 to see what 7/5 must be multiplied by to get to x/45.

You should get 9, so also multiply 7 by 9 to get this:

7/5 = 63/45

This shows that there are 63 yellow marbles for 45 green marbles.

Please thank, rate, and mark brainliest! :)

5 0
2 years ago
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