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3 years ago

Which should be calculated first to solve this story problem?

Mathematics

1 answer:

Elden [556K]3 years ago

5 0

The answer would be a because of the time he is at the gym just add and subtract but the answer is a

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20. The total mass of three boxes, A, B, and C, is 1.95 kg. The mass of Box A is 700 g. The mass of Box B is 4 times the mass of

Ksju [112]

Answer:

Step-by-step explanation:

LET'S DO THIS!

Total mass of A, B and C = 1.95kg

Mass of A = 700 kg

Mass of B = 4x the mass of c (4 x C) which is 4c

Mass of C = ? ( let's call it C )

<h3>Adding all together </h3>

700 + 4c + C = 1.95

<h3>Add like terms</h3>

700 + 5C = 1.95

5C = 1.95 - 700

5C = -698.05

C = -698.05 ÷ 5

<h3>To find B now </h3><h3>Remember they said B is 4 times the mass of C and C = -139.61</h3>

therefore B = 4 × -139.61

<h3>To check if we are correct, we add the masses of A, B and C to see if it equals their total mass which is 1.95kg</h3>

<h3>Using your calculator: </h3>

= 700 + ( -558.44 ) + ( -139.61 )

= 700 - 558.44 -139.61

= 1.95 kg

Which makes us CORRECT ✅.

<h3>Hope this helps.</h3><h3>Good luck ✅.</h3>

5 0

1 year ago

Read 2 more answers

Write the standard form of the equation of the line through the given point with the given slope. Through (-2,5), slope =-4

AleksandrR [38]

Answer:

$\huge\boxed{4x+y=-3}$

Step-by-step explanation:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

<em>(x₁, y₁)</em><em> - point on a line</em>

<em>m</em><em> - slope</em>

<em />

We have

$m=-4,\ (-2,\ 5)\to x_1=-2,\ y_1=5$

Substitute:

$y-5=-4(x-(-2))\\\\y-5=-4(x+2)$

Convert to the standard form

$Ax+By=C$

$y-5=-4(x+2)$ <em> use the distributive property</em>

$y-5=(-4)(x)+(-4)(2)$

$y-5=-4x-8$ <em>add 5 to both sides</em>

$y-5+5=-4x-8+5$

$y=-4x-3$ <em>add 4x to both sides</em>

$4x+y=-4x+4x-3\\\\4x+y=-3$

3 0

3 years ago

Given

Dmitry_Shevchenko [17]

Answer:<BOC= 47

Step-by-step explanation:

6 0

3 years ago

Find the value of x.

Leokris [45]

Answer:

Therefore the value of $x=31\°$

Step-by-step explanation:

Given:

m∠ A = 56°

m∠ B = 75°

m∠ ACD = x°

To Find:

x = ?

Solution:

In Δ ABC

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

Here,

The opposite interior angles are angle A and angle B.

An exterior angle of a triangle is angle ACD which is x°

∴ $m\angle A +m\angle B=m\angle ACD\\$ ...Exterior angle property of Δ

Substituting the values we get

$56+75=x\\\\\therefore x=131\°$

Therefore the value of $x=31\°$

8 0

2 years ago

-10s - 3 = 7. What is s?

lisabon 2012 [21]

-10s-3=7

Add 3

-10s= 10

Divide by -10

s= -1

3 0

3 years ago