A student needs to collect exactly 20 insects for a science project. The student has already collected 13 insects. Write an equa
tion that can be used to find n, the number of insects the student still needs.
A. 13n = 20
B. n - 13 = 20
C. n + 13 = 20
D. 20 + 13 = n
1 answer:
Answer:
The answer is c: N + 13 = 20
Step-by-step explanation:
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Answer:
9675770
Step-by-step explanation:
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Answer: 4^2/5 is your main answer and pls mark me as brainiest
Step-by-step explanation:
17 + 5shirts = 42
5shirts = 42-17 = 25
1shirt = 25/5 = 5
A shirt costs £5.
3*5 + 1hat = 17
15 + 1hat = 17
1hat = 2
A hat costs £2
Answer:
<h3>Given</h3>
- m∠REG = 78°
- mAR = 46°
- ER ≅ GA
<h3>Solution</h3>
- m∠GAR = 180° - m∠REG = 180° - 78° = 102° (supplementary angles sum to 180°)
- m∠TAR = 1/2mAR = 1/2(46°) = 23° (tangent chord angle is half the size of intercepted arc)
- m∠GAN = 180° - (m∠TAR + m∠GAR) = 180° - (23° + 102°) = 55° (straight angle is 180°)
- mAG = 2m∠GAN = 2(55°) = 110°
- mRE = mAG = 110° (as ER ≅ GA)
- mGE = 360° - (mAG + mAR + mRE) = 360° - (110° + 46° + 110°) = 94° (full circle is 360°)
Answer:
18/5 miles
Step-by-step explanation:
let d be the mountain dist path
upward biking
x miles - 1 hr
d 45 mins
3x/4 = d
riding down
x+3 - 60 min
d. - 20
(1/3)(x+3) = d
(x+3)/3 = 3x/4
4x+12 = 9x
x = 12/5
d =( 12*3)/(4*5)= 9/5
upward+downward = 2*(9/5) = 18/5
