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Alla [95]
3 years ago
7

A student in two clarsroom were given a mathematics

Mathematics
1 answer:
alukav5142 [94]3 years ago
4 0

Answer:

90? He score for the class fast and easy

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Can some one please help me to teach this to my daughter
EastWind [94]
28mi/1 hr = 28 mi/60 min = 1 mi/(60/28) min = 

28 mi/hr = 28 mi/60 min since there are 60 min in 1 hr
1 mi/(60/28) min since you divide top and bottom of 28/60 by 28 to get
1 mi/(60/28) min = 1mi/(15/7) min = 1 mi/ 2 1/7 min
3 0
3 years ago
Marise blew up 24 balloons. She tied the balloons together in groups of 4. How many groups did she make?
Ratling [72]

Answer:

6

Step-by-step explanation:

you have 24 ballons, so you divide them by how many groups you can make, 4, then you have the equation 24/4, which equal 6

if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give brainliest

5 0
3 years ago
Is 3, 1, 1/3, 1/9,... a geometric sequence?
barxatty [35]
a_1;\ a_2;\ a_3;\ a_3;\ ...;\ a_n;\ a_{n+1};...\ is\ a\ geometric\ sequence\\if\ a_{n+1}:a_n=const.\\-------------------\\a_1=3;\ a_2=1;\ a_3=\dfrac{1}{3};\ a_4=\dfrac{1}{9}\\\\a_4:a_3=\dfrac{1}{9}:\dfrac{1}{3}=\dfrac{1}{9}\cdot\dfrac{3}{1}=\dfrac{1}{3}\\\\a_3:a_2=\dfrac{1}{3}:1=\dfrac{1}{3}\\\\a_2:a_1=1:3=\dfrac{1}{3}\\\\Answer:Yes.\ It's\ the\ geometric\ sequence.
7 0
3 years ago
the sum of age of mabel and fred is 38 years,four years ago the age of mabel was the square of Fred age.Find their ages
Andrej [43]

m+f=38

(f-4)^2=m-4

f^2=m IF their age is 30 combined

4^2=16

16=16

Fred is 4, Mabel is 16.

8 0
3 years ago
Subtract.<br><br> −3 3/8−7/8<br><br> Enter your answer, in simplest form, in the box.
sp2606 [1]

Answer:

-4 1/4

Step-by-step explanation:

7 0
3 years ago
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