Answer:
10
Step-by-step explanation:
If the sides of the rectangle is 6cm and 8cm, then we mean that, the length and breadth are 6cm and 8cm
The diagonal which cross at AX will be the hypotenus of the triangle formed by drawing the diagonal.
Hence,
Hypotenus = sqrt (opposite² + adjacent²)
AX = sqrt[(8²) + (6²)]
AX = sqrt(64 + 36)
AX = sqrt(100)
AX = 10
Answer:
We need 8 ounces of solution A and 32 ounces of solution B.
Step-by-step explanation:
We are given that a scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt.
She knows that Solution A is 40% salt and Solution B is 65% salt.
- First condition states that she wants to obtain 40 ounces of a mixture that is 60
% salt, that means;
A + B = 40
B = 40 - A ------------ [Equation 1]
- Second condition states that Solution A is 40% salt and Solution B is 65% salt, that means;
{from equation 1}
A = = <u>8 ounces</u>
Now, putting value of A in equation 1, we get;
B = 40 - A
B = 40 - 8 = 32 ounces
Hence, we need 8 ounces of solution A and 32 ounces of solution B.
3.62 is the number, because 4 divided by 3 is 1.33333... So you take 4.82 and divide it by 1.333... and you'll get 3.615, and then you round the number to the nearest hundredths. which will get you, 3.62.
Algebra: must make a chart
$/lb * # of lbs = total
Oak 3.4 x 3.4x
Pine 2.6 40-x 104-2.6x
Mixture 2.8 40 112
Now you can set up your equation ( assuming you know how to do equations 'cuz I figure you're in algebra)
3.4x + 104 - 2.6x = 112
.8x + 104 = 112
.8x = 8
10 pounds of oak
30 pounds of pine
Answer:
k = 29
Step-by-step explanation:
(5k -3) + (9+k) = 180
5k-3+9+k = 180
6k + 6 = 180
6k = 180 - 6 = 174
k = 29