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2 years ago

CALLING ALL BRAINLY USER HELP ME AND I'LL MARK U (BRAINLLEST)!!!

Mathematics

1 answer:

Natalka [10]2 years ago

7 0

Answer:

it would be b for 1 since 7 would be negative and the 3 would be positive

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There is 0.3 kg of tin in a sword.

Sauron [17]

Answer:

2 kg

Step-by-step explanation:

15/100 x = 0.3

x = 0.3 * 100/15

x = 2

7 0

2 years ago

What's 7/12 minus 3/12 simplified? BTW ONLY IN 4TH GRADE MAKE IT CLEAR

dusya [7]

7/12 - 3/12 = 1/3
Simplify each fraction if possible.
Same denominator? YES!
7 - 3 = 4
Since they have the same denominator, you just subtract the numerators.
Then simplify 4/12
4/4= 1 12/4= 3
Answer: 1/3
Hope that helps!

4 0

2 years ago

Read 2 more answers

3 Fred is playing tennis. For every 2 of his serves that land in, 3 serves land out. If he hit 30 serves in, how many serves lan

sineoko [7]

Answer:

Step-by-step explanation:

2:3 = 30:45

6 0

2 years ago

Read 2 more answers

Find the sum: 2 + 9 + 16 + ... + 37

iris [78.8K]

Step-by-step explanation:

Sum of arithmetic terms = n/2 × [2a + (n - 1)×d], where 'a' is the first term, 'd' is the common difference between two numbers, and 'n' is the number of terms.

this is the same as n/2 × (a1 + an), because

an = a1 + (n-1)×d

so, for the series above :

a or a1 = 2

d = 7, as every new term is the previous term plus 7.

for n

37 = a1 + (n-1)×d = 2 + (n-1)×7

and now solve for n

35 = 7n - 7

42 = 7n

n = 6

so, the sum of all terms is

6/2 × (2+37) = 3×39 = 117

7 0

2 years ago

A scale drawing of an automobile has a scale of 1 in.

Paul [167]

The correct question in the attached figure

we know that
the scale is 1 in (scale drawing)= (1/2) foot (actual)-----> 1/(1/2)=2 in/ft
[scale]=[scale drawing]/[actual]
then
[scale drawing]=[scale]*[actual]
therefore
for actual width of the car 8 ft
[scale drawing]=[2 in/ft]*[8 ft]=16 in

the answer is 16 in

5 0

2 years ago