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likoan [24]
3 years ago
15

Kaya devoted 2/5 of her study time to mathematics, 3/20 of her time to social studies, 1/3 of her time to chemistry and the rema

ining 42 minutes to English. How much time she spend studying social studies ?
Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

  54 minutes

Step-by-step explanation:

The sum of fractions is ...

  2/5 + 3/20 + 1/3 = 11/20 +1/3 = (3·11 + 20·1)/(20·3) = 53/60

Then the 42 minutes devoted to English represents 1 - 53/60 = 7/60 of her study time.

Kaya's social studies time is 3/20 = 9/60 of her total, so the ratio of SS to Eng is ...

  SS : Eng = (9/60) : (7/60) = 9 : 7

When we multiply the numbers in this ratio by 6, we find ...

  SS : Eng = 54 : 42

Kaya spent 54 minutes studying social studies.

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The population of Clairette
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The estimated amount of people in Clairette, Texas is roughly 55-65 people 
3 0
3 years ago
What property is used in the second step of solving the inequality below?
labwork [276]

The property used is B: addition property

Step-by-step explanation:

The addition property of equality states that if you add the same number to both sides of an equation, the equation balances.In this case;

5x-9<91------------performing addition property of equality

5x-9+9<91+9

5x<100----------performing division property

5x/5<100/5

x<20   ------answer

Learn More

Addition Property : brainly.com/question/3474035

Keyword : property, inequality

#LearnwithBrainly

4 0
3 years ago
A glass plummet weighs 14.35 g in air 5 points 11.40 g when immersed in water, and 8.95 g when immersed in sulfuric acid. Calcul
elena-s [515]

Answer:

0.865

Step-by-step explanation:

Specific gravity is a ratio of the weight of a substance to the weight of an equal volume of a substance chosen as a standard. The standard for liquid and solids is water while for gas is hydrogen.

Amount of displaced oil = 12.64 g — 9.12 g = 3.52 g

Amount of displaced water = 12.64 g — 8.57 g = 4.07 g

Specific gravity of oil = 3.52 g / 4.07 g = 0.865

6 0
2 years ago
Let ABC be an isosceles triangle with AB = AC and ∠BAC=30°. Side AB and the median AD contain points Q and P respectively (point
juin [17]

Answer:

15°

brainlest

Step-by-step explanation:

Since P is on the median of ΔABC, it is equidistant from points B and C as well as from C and Q. Thus, points B, C, and Q all lie on a circle centered at P. (See the attached diagram.)

The base angles (B and C) of triangle ABC are (180° -30°)/2 = 75°. This means arc QC of the circle centered at P has measure 150°. The diameter of circle P that includes point Q is defined to intersect circle P at R.

Central angle RPC is the difference between arcs QR and QC, so is 180° -150° = 30°. Inscribed angle RQC has half that measure, so is 15°.  Angle PQC has the same measure as angle RQC, so is 15°.

Angle PQC is 15°.

4 0
2 years ago
Helppp! idk why its needs to be 20 charactes so i wrote this
marin [14]
This should be 1.35, sorry if it’s wrong
6 0
2 years ago
Read 2 more answers
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