Answer:
It does because 26 = 20 + 6, and the model shows 2 groups of 10 and 2 groups of 3.
Step-by-step explanation:
Two groups of 10 make 20. Two groups of 3 make 6.
20 + 6 = 26
B is wrong. The model does not show two groups of 6.
C is wrong. The model should show one group of 6..
D is wrong. The model should show two groups of 10 and one group of 6.
You add 6+21=27 and then add 27+4 which equals 31
Answer:
The number is 6.25
Explanation:
Assume that the number we are looking for is x
First, we will set up the equations as follows:
1- Subtract 1.05 from the number (assume the result is y):
x - 1.05 = y
2- Multiply the difference by 0.8 (assume the product is z):
0.8(y) = z
3- add 2.84 to the product (assume the result is w):
z + 2.84 = w
4- divide the sum by 0.01, the quotient is 700:
w / 0.01 = 700
Now, we will work backwards as follows:
4) w / 0.01 = 700
w = 0.01 * 700
w = 7
3) z + 2.84 = w
z + 2.84 = 7
z = 7 - 2.84
z = 4.16
2) 0.8y = z
0.8y = 4.16
y = 4.16 / 0.8
y = 5.2
1) x - 1.05 = y
x - 1.05 = 5.2
x = 5.2 + 1.05
x = 6.25
Hope this helps :)
You will have infinite solutions
You do three fourths times eight and that equals six.
