Hello from MrBillDoesMath!
Answer:
csc (90° – x) = sec (x
)
sin (90° – x) = cos (x
)
tan (90° – x) = cot (x)
cos (90° – x) = sin (x
)
cot (90° – x) = tan (x
)
sec (90° – x) = csc (x)
Thank you,
MrB
Answer:
a) if you where to go down two to the left one it would connect from a to b and from b to c. these triangles all equal to each other.
b) the inital value is 63 since you y intercept is 63 and your slope is 2. 63 is the distance at 0 mins over time the slope is 2 per min
Answer:
I hope I got it right... (answers in the pics above)
Step-by-step explanation:
At first I didn't quite understand what the problem is about, but than I figured this out...so yeah, good luck !
Number of child tickets: x
Number of adult tickets: y
1) x+y=370
2) 3x+7y=1750
Using the method of substitution
a) Isolating y in the first equation:
1) x+y=370→x+y-x=370-x→y=370-x
b) Replacing y=370-x in the second equation:
2) 3x+7y=1750→3x+7(370-x)=1750
c) Solving for x: Distributive property:
3x+7(370)-7x=1750
3x+2590-7x=1750
Adding similar terms:
-4x+2590=1750
-4x+2590-2590=1750-2590
-4x=-840
Dividing both sides of the equation by -4:
-4x/(-4)=-840/(-4)
x=210
Replacing x=210 in the first equation:
1) y=370-x→y=370-210→y=160
Answer:
The number of child tickets was 210 and
the number of adult tickets was 160
Using the percentage concept, it is found that 40% of Alberto’s income is used to pay for his rent and groceries.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
In this problem:
- Alberto’s monthly income is $3,200, hence b = 3200.
- He spends 896 + 384 = $1280 in rent and groceries, hence a = 1280.
Then, the percentage is given by:
More can be learned about the percentage concept at brainly.com/question/10491646
