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4 years ago

How do you solve these types of questions?

Mathematics

1 answer:

Ahat [919]4 years ago

6 0

What questions? you didn't put any image up no one can answer your question because it's not a proper question.

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What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10?

Artemon [7]

Answer:

s = 4

Step-by-step explanation:

3r = 10 + 5s

3×10 = 10 + 5s

5s = 30 - 10

5s = 20

s = 20 : 5

s = 4

7 0

3 years ago

Read 2 more answers

Jessica and Martha each have a bag of cookies with unequal quantities. They have 30 cookies total between the two of them. Each

Basile [38]

Answer:

Part 1) The inequality that describes the relationship between the number of cookies each one of them has is $x^{2} -30x+224\geq 0$

Part 2) Jessica has at least 2 cookies more than Martha

Step-by-step explanation:

Part 1) Find the inequality that describes the relationship between the number of cookies each one of them has

Let

x----> the number of cookies when Jessica started

30-x ----> the number of cookies when Martha started

we know that

Each of them ate 6 cookies from their bag

The cookies left in each bag are

(x-6) ----> Jessica

and (30-x-6)=(24-x) ---> Martha

The product is equal to (x-6)(24-x)

The product of the number of cookies left in each bag is not more than 80.

$(x-6)(24-x)\leq 80\\ \\24x-x^{2}-144+6x\leq 80\\ \\-x^{2} +30x-144-80\leq 0\\ \\-x^{2} +30x-224\leq 0$

Multiply by -1 both sides

$x^{2} -30x+224\geq 0$

Part 2) Solve the quadratic equation

$x^{2} -30x+224\geq 0$

Solve by graphing

The solution is x=16 cookies

(30-x)=30-16=14 cookies

therefore

The number of cookies when Jessica started was 16 cookies

The number of cookies when Martha started was 14 cookies

The number of cookies left in each bag is equal to

Jessica

16-6=10 cookies

Martha

14-6=8 cookies

Jessica has at least 2 cookies more than Martha

7 0

3 years ago

Read 2 more answers

PLEASE ANSWER THIS AND IF YOU DO YOU GET <br> 1. FOLLOW<br> 2. BRAINLIEST

spin [16.1K]

Answer:

1. y= 2x + 5

2. y= 2x -16

3. - 7/5 x + 18/5

3 0

3 years ago

Solve for A and line AB

Butoxors [25]

Answer:

a = 22

AB = 50

Step-by-step explanation:

$a-5=17$

$a=17+5$

$a=22$

Line AB=2a+6

$2(22)+6=44+6=50$

$AB=50$

Hope this helps

8 0

3 years ago

Read 2 more answers

Can u please give me the real answer I really need help☹️

Dmitriy789 [7]

Answer:

12,000 g = 12000000 kg

120 cm = 1200 mm

1.2 L = 1200 L

1200 cm = 12 m

0.12 m = 120 mm

8 0

3 years ago