All categories

2 years ago

4) linear equations 9+4x=-15

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

8 0

Answer:

X=-6

Step-by-step explanation:

Subtract 9 on both sides

Add -9 and -15 You get -24

Divide -24 by 4 you get x=-6

You might be interested in

Among 35 students in a class, 20 of them earned A's on the midterm exam, 13 earned A's on the nal exam, and 12 did not earn A's

enyata [817]

Answer:

The correct answer is " $\frac{2}{7}$ ".

Step-by-step explanation:

According to the question,

Number of students,

= 35

A ! mid term A,

$n(A) = 20$

B : final A,

$n(B) = 13$

Didn't start,

$n(A^c \cap B^c) = 12$

Now,

⇒ $n(A \cup B)=35-12$

$=23$

then,

⇒ $n(A \cup B)=20+13-23$

$=10$

hence,

The probability will be:

⇒ $P(A \cap B)=\frac{10}{35}$

⇒ $=\frac{2}{7}$

7 0

3 years ago

68,435,190 in word form

Orlov [11]

sixty eight million, four hundred thirty five thousand, one hundred and nienty

5 0

2 years ago

Read 2 more answers

All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal

zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

$relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18$

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

$4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62$

Finally the height of this new triangle is 3.62 cm

6 0

2 years ago

Five crates weigh 200 pounds. One crate weighs 20 pounds but each of the other four crates weigh the same amount. What is the we

ElenaW [278]

Subtract 20 from the total weight and divide by 4:

200 - 20 = 180

180/4 = 45

Each other crate weighs 45 pounds each.

7 0

2 years ago

Ae is an angle bisector of

Eduardwww [97]

Is there any picture that we can work with??

8 0

2 years ago

Read 2 more answers