All categories

2 years ago

Solving simultaneous equationa+b=7a-b=3

Mathematics

1 answer:

Lelu [443]2 years ago

3 0

Answer: a=5 b=2

Step-by-step explanation:

They both satisfy the equation as 5+2=7 and 5-2=3

Hope this helps!

You might be interested in

According to a recent study, the carapace length for adult males of a certain species of tarantula are normally distributed with

seraphim [82]

Idk tbh sorry bye ok hbye

3 0

3 years ago

Which is a quadratic function having a leading coefficient of 3 and a constant term of –12? f(x) = –12x2 3x 1 f(x) = 3x2 11x – 1

eimsori [14]

The correct option is b.

<h2>Quadratic Equation</h2>

A quadratic equation is an equation that can be written in the form of

ax²+bx+c.

Where a is the leading coefficient, and

c is the constant.

<h2>Leading coefficient </h2>

The leading coefficient of an equation is a coefficient of the term having the highest power in the equation.

Given options:

a.) $f(x) = -12x^2+3x+1 \\$

b.) $f(x) = 3x^2+11x-12 \\$

c.) $f(x) = 12x^2+3x+3\\$

d.) $f(x) = 3x -12.$

<h3 /><h3>Solution</h3>

As it is given that the leading coefficient of the equation is 3. therefore, the value of the 'a' in the general quadratic equation is 3,

3x²+bx+c,

Also, the value of the constant is -12, therefore, the value of c is -12,

3x²+bx-12

From all the given options the only feasible option is b only.

Hence, the correct option is b.

Learn more about Quadratic Equation:

brainly.com/question/2263981

8 0

2 years ago

luke jogged a total of 56.5 miles last week. if luke jogged the same distance,d, each day for 3 days and half that distance on e

Leokris [45]

The algebraic equation used to answer this question is:
3d + 4(1/2d) = 56.5
This is because he ran d, the distance, three times that week. For the rest of the four days, he ran 1/2 the distance, or half d.
To find the answer, you first distribute:
3d + 2d = 56.5
Add like terms:
5d = 56.5
Divide both side by 5:
5d/5 = 56.5/5
d = 11.3
On the first three days, Luke jogged 11.3 miles. On the remaining days, where he jogged 1/2d, Luke jogged 5.65 miles.
Hope this helps!

3 0

3 years ago

The coordinate grid shows a scale model in feet of Sylvia’s bedroom. Sylvia wants to apply a border around the top of the bedroo

LenaWriter [7]

Answer:

22 ft

Step-by-step explanation:

Find the perimeter.

6 + 6 + 5 + 5 = 22 ft

3 0

3 years ago

Samantha says the fraction of the group of customers who ordered raspberry topping is 1/2. Explain why samantha is correct.

Temka [501]

Answer and explanation:

Yes Samantha is correct. Samantha is correct because a fraction 1/2 of customers who ordered raspberry toppings refers to half of the total number of customers. A fraction 1/2 is 50 percent or 50/100 of the population of customers, therefore meaning that 50% or half of the total number of group of customers ordered raspberry toppings

4 0

3 years ago

Solving simultaneous equationa+b=7a-b=3​

Solving simultaneous equationa+b=7a-b=3