All categories

2 years ago

-4m + 5 = -15 SHOW YOUR WORK PLEASE!!

Mathematics

2 answers:

Anvisha [2.4K]2 years ago

6 0

Answer:

Step-by-step explanation:

-4m + 5 = -15

-5 -5

-4m = -20

___ ___

-4 -4

m=5

rodikova [14]2 years ago

3 0

Answer: 5

Step-by-step explanation: Subtract 5 from -15 to get -20. Then divide by -4 and you should get 5. :)

You might be interested in

Point F is at (0, -10) and point H is at (-6, 5). Find the coordinates of point G on line segment FH such that the ratio of FG t

Tanya [424]

Answer:

G(x,y)=(-4,0)

Step-by-step explanation:

We use the section formula:

$(x,y)=\left(\dfrac{mx_2+nx_1}{m+n}, \dfrac{my_2+ny_1}{m+n}\right)$

Given:

$F(x_1,y_1)=(0, -10)\\H(x_2,y_2)=(-6, 5)\\FG:GH=m:n=2:1$

We substitute the values to get:

$G(x,y)=\left(\dfrac{2*-6+1*0}{2+1}, \dfrac{2*5+1*-10}{2+1}\right)\\=\left(\dfrac{-12}{3}, \dfrac{10-10}{3}\right)\\=\left(\dfrac{-12}{3}, \dfrac{0}{3}\right)\\\\G(x,y)=(-4,0)$

5 0

3 years ago

Write the factors for each number Then decide whether the number is prime or composite

Lina20 [59]

Answer:

Step-by-step explanation:

If it have more than 2 divider its composite but its divider is only one and its self only its prime.1 isn't neither prime nor composite

8 0

3 years ago

Find the difference (−2g+7)−(g+11)

RUDIKE [14]

Answer:

-3g -4

Step-by-step explanation:

plz brainestt

6 0

2 years ago

Read 2 more answers

Solve 3x2 + 4x = −5.

Alla [95]

Move the -5 over by adding 5 to both sides
3x^2+4x+5=0
must use quadratic formula

for an equation in the form
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=3
b=4
c=5

x= $\frac{-4+/- \sqrt{4^2-4(3)(5)} }{2(3)}$
x= $\frac{-4+/- \sqrt{16-60} }{6}$
x= $\frac{-4+/- \sqrt{-44} }{6}$
x= $\frac{-4+/- 2\sqrt{-11} }{6}$
remember that√-1=i
x= $\frac{-4+/- 2i\sqrt{-11} }{6}$
x= $\frac{-2+/- i\sqrt{-11} }{3}$

x= $\frac{-2+ i\sqrt{-11} }{3}$ or x= $\frac{-2- i\sqrt{-11} }{3}$

4 0

2 years ago

Hãy chỉ cho tôi học thực hiện phép tính lớp 9

butalik [34]

Answer:

thật ngu ngốc

Stethật ngu ngốcp-by-step explanation

4 0

2 years ago