Answer:
8 weeks
Step-by-step explanation:
Given Valerie want's to buy a backpack which costs $57.65
Also given that she saves $7.25 a week
Let the number of weeks she saves the money be x
For her to buy the backpack the following inequality should be satisfied
amount saved > cost of the item
The amount saved =
7.25x > 57.65
x > 7.95
Since x is an integer we have x = 8
Therefore she has to save 8 weeks to buy the item
1a. 5000 mg 1b. 17kg
2a. 4 Kl 2b. 51L
3a. 60 cm 3b. 8000 mm
4a. 4000000 ml 4b. 46 Kl
5a. 42000 mm 5b. 12000 m
6a. 2150 mg 6b. 4200 g
7. Duanes pencil is 6 millimeters longer
8. Pedros stack of coins weighs 20700 milligrams more.
The answer is C
Because radical 38 would equal approximately 6.1644, which is what the line shows.
Answer:
Step-by-step explanation:
X + y - Z=3 ------------------(I)
2y + 2z = 6 ------------------(II)
-2y - Z = -2 ------------------(III)
Multiply equation (III) by 2 and add equation (II) & (III)
(II) 2y + 2z = 6
(III)*2 <u>-4y - 2z = -4</u> {Now add and z will be eliminated}
-2y = 2
y = 2/-2
y = -1
Plugin y =-1 in equation (II)
2*(-1) + 2z = 6
-2 + 2z = 6
2z = 6 + 2
2z = 8
z = 8/2
z = 4
Plugin y = -1 & z = 4 in equation(I)
x - 1 - 4 = 3
x - 5 = 3
x = 3 + 5
x = 8
Answer:
It's C) 53
Step-by-step explanation: