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Eddi Din [679]
3 years ago
5

Find the product (3a+3b)(3a-2b)

Mathematics
1 answer:
kykrilka [37]3 years ago
8 0
9a^2+3ab - 6b^2 hope i helped
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Big Big School has 25,000 students. Each student takes 2 classes a day and each teacher teaches 4 classes. Each class has 10 stu
mojhsa [17]

Answer: 1,250

Step-by-step explanation:

Given: The total number of students in the school= 25,000

Since each class has 10 students , therefore, the number of classes in the school= \frac{25000}{10}=2500

Also, Each student takes 2 classes a day, thus the number of classes taken by total teachers in a day = 2\times2500=5000

Also, each teacher teaches 4 classes.

Then the number of teachers in the school =\frac{5000}{4}=1250

Hence, the number of teachers are at  Big Big School = 1,250

4 0
4 years ago
Can somone help me pls
Nastasia [14]

Answer:

x = 9

Step-by-step explanation:

First equation = 4x - 8

Second equation = 7x - 35

Seperate the equation with an equal sign to make it an equality equation and solve for X so :

4x - 8 = 7x - 35 (Given)

-3x - 8 = -35 (Subtraction property of equality)

-3x = -27 (Addition property of equality)

x = 9 (Division property of equality)

Solution:

x = 9

4 0
3 years ago
If PQ=7 and QR=10, then PR=
Cloud [144]

Answer:

PR=PQ+QR

=7+10

=17

Hope this will help:)

8 0
3 years ago
Read 2 more answers
40% of the 300-member sophomore class is in the band. The percussion section is made up of 5% of these band members. How many of
Rudik [331]
40% of 300 = 0.40(300) = 120 are in the band
5% of 120 = 0.05(120) = 6 are in percussion
6 0
3 years ago
Read 2 more answers
What is the slope, y-intercept and x-intercept of 2x + 4y = 8
QveST [7]
2x+4(0)=8
2x=8
x intercept; (4,0)
2(0)+4y=8
4y=8
y intercept; (0,2)
2x+4y=8
4y=-2x+8
4y/4=-2/4+8/4
y=-1/2x+2
3 0
4 years ago
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